
Since the first printing ofCarl Linnaeus'sSpecies Plantarum in 1753, plants have been assigned oneepithet or name for theirspecies and one name for theirgenus, a grouping of related species.[1] Thesescientific names have been catalogued in a variety of works, includingStearn's Dictionary of Plant Names for Gardeners.William Stearn (1911–2001) was one of the pre-eminent British botanists of the 20th century: a Librarian of theRoyal Horticultural Society, a president of theLinnean Society and the original drafter of theInternational Code of Nomenclature for Cultivated Plants.[2][3]
The first column below listsseed-bearing species epithets fromStearn's Dictionary,Latin for Gardeners[4] by Lorraine Harrison,The A to Z of Plant Names by Allen Coombes,The Gardener's Botanical[5] by Ross Bayton, and the glossary of Stearn'sBotanical Latin.[6] Epithets fromproper nouns,proper adjectives, andtwo or more nouns are excluded, along with epithets used only in species names that areno longer widely accepted.Classical and modern meanings are provided in the third column, along with citations toCharlton T. Lewis'sAn Elementary Latin Dictionary.[7][a]







































































































| Epithets[8][9][c] | LG[10] | Meanings and derivations | Example species[d] | H | DS | C |
|---|---|---|---|---|---|---|
| ianthinus | G | bluish-purple | Justicia ianthina | D | ||
| icosandrus | G | twenty-stamened | Phytolacca icosandra | H | DS | |
| idoneus | L | worthy[7] | Lupinus idoneus* | DS | ||
| igneus | L | fiery red[7] | Cuphea ignea,Heliconia ignescens* | H | DS | C[11] |
| ignescens | H | DS | ||||
| ignotus | L | (formerly) unknown[7] | Tricalysia ignota* | DS | ||
| illecebrosus | L | enticing, fromillecebra[7] | Tigridia illecebrosa* | H | DS | |
| illinitus | L | smeared, fromlino, to smear[7] | Escallonia illinita* | H | DS | |
| illustris | L | lustrous, fromlustro, to illuminate[7] | Ilex illustris | H | D | C[12] |
| imbecillus | L | feeble | Agrostis imbecilla* | DS | ||
| imbecillis | DS | |||||
| imberbis | L | unbearded[7] | Combretum imberbe | H | DS | |
| imbricatus | L | overlapping, fromimbrex, gutter tile;[7]imbricate. (Alsoimbricans,[4]imbricarius.)[13] | Cylindropuntia imbricata | H | DS | C[14] |
| immaculatus | L | immaculate, frommacula, stain[7] | Dicerandra immaculata | H | DS | |
| immersus | L | immersed[7] | Navia immersa | H | DS | |
| impeditus | L | impeded[7] | Tragia impedita* | DS | C[15] | |
| imperator | L | war leader; emperor[7] | Fritillaria imperialis,Epidendrum imperator* | D | ||
| imperialis | H | D | C[16] | |||
| implexus | L | interwoven[7] | Acacia implexa | H | DS | |
| impressus | L | engraved;[7] creased | Epacris impressa | H | DS | C[17] |
| impudicus | L | impudent[7] | Heliconia impudica | DS | ||
| inaequalis | L | unequal[7] | Dryopteris inaequalis | H | DS | |
| inapertus | L | closed, fromapertus[7] | Agapanthus inapertus | DS | C[18] | |
| incanus | L | grey-haired[7] | Matthiola incana | H | DS | C[19] |
| incarnatus | L | peach-coloured, fromcaro, flesh[7] | Asclepias incarnata | H | DS | C[20] |
| incertus | L | uncertain[7] | Penstemon incertus | H | DS | |
| incisus | L | cut deeply;[7]incised | Urtica incisa | H | DS | C[21] |
| inclaudens | L | not closing | Esterhuysenia inclaudens* | H | ||
| inclinatus | L | inclined[7] | Bulbophyllum inclinatum | H | DS | |
| incomparabilis | L | incomparable, fromcomparabilis[7] | Stapelia incomparabilis* | H | DS | |
| incomptus | L | unkempt[7] | Blakea incompta | H | D | |
| inconspicuus | L | inconspicuous, fromconspicuus[7] | Trithuria inconspicua | H | DS | |
| incrassatus | L | stout, fromcrassus, thick[7] | Eucalyptus incrassata | H | DS | |
| incurvus | L | bowed;[7]incurved | Corybas incurvus,Dacryodes incurvata | H | DS | C[22] |
| incurvatus | H | DS | ||||
| indivisus | L | undivided, fromdivido[7] | Cordyline indivisa | H | DS | |
| induratus | L | hardened[7] | Eucalyptus indurata | H | DS | |
| inebrians | L | intoxicating, frominebrio[7] | Lagochilus inebrians | H | D | |
| inermis | L | unarmed[7] | Nepenthes inermis | H | DS | C[23] |
| infaustus | L | unfortunate[7] | Vangueria infausta | H | D | |
| infectorius | L | tinted, frominfector, dyer[7] | Quercus infectoria | H | D | |
| infestus | L | troublesome[7] | Adolphia infesta* | H | DS | |
| inflatus | L | swollen;[7]inflated | Eriogonum inflatum,Utricularia inflata | H | DS | C[24] |
| inflexus | L | bowed;[7]inflexed | Utricularia inflexa | DS | ||
| infortunatus | L | unfortunate[7] | Clerodendrum infortunatum | H | D | |
| infractus | L | bent, fromfrango, to fracture[7] | Hypolobus infractus | H | DS | |
| infundibuliformis | L | funnel-shaped. (Alsoinfundibulus.)[4][e] | Crossandra infundibuliformis | H | DS | |
| ingens | L | huge[7] | Euphorbia ingens | H | DS | |
| innominatus | L | uncelebrated, fromnominatus;[7] nameless | Iris innominata | DS | ||
| innoxius | L | harmless.[7] (Alsoinoxius.)[26] | Datura innoxia | DS | ||
| inodorus | L | unscented, fromodorus[7] | Tripleurospermum inodorum | H | DS | |
| inopinus | L | unexpected[7] | Encephalartos inopinus | D | ||
| inornatus | L | plain[7] | Boronia inornata | H | D | |
| inquinans | L | stained, frominquino[7] | Pelargonium inquinans | H | D | |
| inscriptus | L | inscribed[7] | Calathea inscripta* | D | ||
| insignis | L | significant[7] | Nepenthes insignis | H | DS | C[27] |
| insipidus | L | insipid, fromsapio[7] | Ficus insipida | DS | ||
| insititius | L | grafted, frominsitio, a grafting[7] | Prunus insititia | H | DS | |
| insulanus | L | island[7] | Alsophila insulana,Digitaria insularis | H | D | |
| insularis | H | DS | ||||
| intactus | L | intact[7] | Anthurium intactum* | DS | ||
| intaminatus | L | uncontaminated[7] | Cyclamen intaminatum | D | ||
| integer | L | undivided;[7]entire. Feminineintegra, neuterintegrum. | Artocarpus integer,Ochna integerrima | H | DS | C[28] |
| integerrimus | DS | C[17] | ||||
| intermedius | L | intermediate, frommedium, middle[7] | Thinopyrum intermedium | H | DS | C[29] |
| interruptus | L | gapped[7] | Salvia interrupta | H | DS | |
| intertextus | L | interwoven[7] | Eucalyptus intertexta | H | D | |
| intortus | L | contorted, fromintorqueo[7] | Acacia intorta | H | DS | |
| intricatus | L | entangled | Dipterocarpus intricatus | H | DS | |
| introrsus | L | turned inwards;[7]introrse | Endiandra introrsa | DS | ||
| intumescens | L | tumescent, fromintumesco[7] | Acrocomia intumescens | H | DS | |
| inundatus | L | inundated, frominundo[7] | Lycopodiella inundata | DS | ||
| inutilis | L | useless[7] | Allium inutile | D | ||
| inversus | L | inverted[7] | Astragalus inversus | H | DS | |
| invisus | L | unseen[7] | Silene invisa | D | ||
| involucratus | L | enveloped, frominvolucrum, wrapper;[7]involucred | Davidia involucrata | H | DS | C[30] |
| involutus | L | rolled up, frominvolvo;[7]involute | Bulbophyllum involutum | H | DS | |
| involvens | L | wrapping-around[7] | Utricularia involvens | DS | ||
| ionanthus | G | violet-coloured flowers | Streptocarpus ionanthus | H | DS | |
| iridescens | L | iridescent, fromiris, rainbow[7][10] | Caladenia iridescens | H | D | |
| irrasus | L | unshaven, fromrasus[7] | Grevillea irrasa | D | ||
| irregularis | L | not symmetric, fromregula, rule;[7]irregular | Polygala irregularis | H | DS | |
| irriguus | L | irrigated; wet[7] | Stellaria irrigua | H | DS | |
| irritans | L | irritating, fromirrito[7] | Triodia irritans | D | ||
| irroratus | L | besprinkled,fromirroro[7] | Acacia irrorata | D | ||
| isophyllus | G | even-leaved | Campanula isophylla | H | DS | C[22] |
| ixocarpus | G | sticky-fruited | Indigofera ixocarpa* | H | D | |
| jejunus | L | meagre; small[7][f] | Salix jejuna | H | ||
| jubatus | L | crested;[7]awned | Hordeum jubatum | H | DS | C[31] |
| jucundus | L | joyful; pleasant[7] | Conophytum jucundum | H | D | C[32] |
| jugalis | L | yoked[7] | Melicope jugosa,Psychotria jugalis | H | D | |
| jugosus | H | D | ||||
| julaceus | L | cylindrical, like somecatkins | Anomobryum julaceum | H | S | |
| junceus | L | made of rushes;[7] rush-like | Psathyrostachys juncea | H | DS | C[33] |
| juvenilis | L | young[7] | Carex juvenilis* | H | S | |
| kermesinus | L | crimson, from Arabic and Latin | Portea kermesina | H | DS | |
| labiatus | L | lipped, fromlabium, lip[7] | Cattleya labiata,Zygosepalum labiosum | H | DS | |
| labiosus | H | DS | ||||
| labilis | L | labile, fromlabo, to totter or slip[7] | Celtis labilis* | H | D | |
| lacerus | L | jagged, fromlacer, lacerated.[7] Stearn's spelling islacer. | Spiranthes lacera,Calanthe lacerata* | H | DS | |
| laceratus | DS | |||||
| laciniatus | L | roughly segmented | Silphium laciniatum,Carya laciniosa | H | DS | C[34] |
| laciniosus | DS | C[19] | ||||
| lacrimans | L | weeping, fromlacrimo[7] | Eucalyptus lacrimans | H | D | |
| lacteus | L | milky[7] | Iris lactea,Hieracium lactescens | H | DS | C[35] |
| lactescens | D | |||||
| lactifer | L | milk; with milky sap[g] | Gymnema lactiferum | H | DS | |
| lacunosus | L | full of hollows[7] | Ipomoea lacunosa | H | DS | |
| lacustris | L | lake, fromlacus[7] | Iris lacustris | H | DS | C[36] |
| laetus | L | joyful;[7] bright | Myoporum laetum | H | DS | |
| laevis | L | smooth[7] | Hibiscus laevis,Echinacea laevigata | H | DS | C[37] |
| laevigatus | H | C[38] | ||||
| lamellatus | L | layered, fromlamina, a thin sheet;[7]lamellate | Leptospermum lamellatum | H | DS | |
| lanatus | L | woolly[7] | Citrullus lanatus | H | DS | C[39] |
| lanceus | L | lance, fromlancea[7] | Searsia lancea | H | D | |
| lanceolatus | L | lanceolate | Persoonia lanceolata | H | DS | C[40] |
| laniger | L | fleecy[7] | Leptospermum lanigerum,Myriopteris lanosa,Fraxinus lanuginosa | H | DS | C[41] |
| lanosus | H | DS | C[42] | |||
| lanuginosus | H | DS | C[43] | |||
| lappa | L | with burrs.[7] (Alsolappaceus.) | Arctium lappa | H | DS | |
| lasiocarpus | G | woolly-fruited | Abies lasiocarpa | DS | C[44] | |
| latebrosus | L | with lurking-holes;[7] concealing | Vexatorella latebrosa | D | ||
| lateralis | L | lateral, fromlatus, side[7] | Calothamnus lateralis | H | DS | |
| lateritius | L | brick-red, fromlater, brick[7] | Melaleuca lateritia | H | DS | C[45] |
| latifolius | L | broad-leaved, fromlatus, broad[7] | Isopogon latifolius | H | DS | C[22] |
| laudatus | L | laudible[7] | Rhododendron laudandum* | H | D | |
| laudandus | D | |||||
| laxus | L | relaxed;[7]lax | Freesia laxa | H | DS | C[46] |
| leiocarpus | G | smooth-fruited | Angophora leiocarpa | H | DS | |
| lenticularis | L | lens;lenticular | Isolepis lenticularis,Atriplex lentiformis | DS | ||
| lentiformis | DS | C[47] | ||||
| lentiginosus | L | spotted | Astragalus lentiginosus | H | DS | |
| lentus | L | pliant[7] | Betula lenta | H | DS | C[48] |
| leonis | L | lion, fromleo.[7] Neuterleonis. | Phacelia leonis | H | D | |
| leopardinus | G | spotted | Bulbophyllum leopardinum | H | D | |
| lepidotus | G | scaly | Andesanthus lepidotus | DS | ||
| lepidus | L | elegant[7] | Lupinus lepidus | H | D | |
| leptophyllus | G | slender-leaved | Banksia leptophylla | H | DS | C[49] |
| leucanthus | G | white-flowered | Stenomesson leucanthum | H | DS | C[50] |
| lignosus | L | woody, fromlignum[7] | Dipogon lignosus | H | DS | |
| ligularis | L | shoe-strap, fromligula;[7]liguled | Passiflora ligularis,Schoenus ligulatus | H | D | |
| ligulatus | H | DS | ||||
| limbatus | L | bordered, fromlimbus, border[7] | Fissidens limbatus | H | DS | |
| limosus | L | muddy[7] | Schoenus limosus | H | DS | |
| limnophilus | G | marsh-loving | Myriophyllum limnophilum* | DS | ||
| linearis | L | linear | Persoonia linearis | H | DS | C[51] |
| lineatus | L | lined | Iris lineata | H | DS | C[34] |
| lingua | L | tongue[7] | Pterostylis lingua | H | DS | C[52] |
| linguiformis | H | DS | ||||
| lingulatus | H | DS | ||||
| lissocarpus | G | smooth-fruited | Synostemon lissocarpus* | D | ||
| lithophilus | G | rock-loving | Isoetes lithophila* | H | DS | |
| littoralis | L | littoral, fromlitus, shore[7] | Griselinia littoralis,Acacia littorea | H | DS | C[53] |
| littoreus | H | DS | ||||
| lividus | L | lead-coloured[7] | Helleborus lividus | H | DS | C[54] |
| lobatus | G | lobed | Quercus lobata | H | DS | C[55] |
| lobulatus | H | D | ||||
| lochmius | G | thicket | Rhododendron lochmium* | D | ||
| longus | L | long[7] | Curcuma longa | H | DS | C[56] |
| longissimus | L | longest | Dasylirion longissimum | H | DS | C[57] |
| lophanthus | G | crested-flower | Paraserianthes lophantha | H | DS | |
| lucens | L | shining; clear. Fromluceo.[7] | Potamogeton lucens | H | DS | |
| lucidus | H | D | C[35] | |||
| lunatus | L | lunate[7] | Phaseolus lunatus | H | DS | C[58] |
| lunulatus | H | DS | ||||
| luridus | L | greyish-yellow[7] | Pelargonium luridum | H | DS | |
| luteus | L | yellow[7] | Gentiana lutea | H | DS | C[59] |
| luteolus | L | light yellow[7] | Iris lutescens | H | DS | |
| lutescens | DS | C[15] | ||||
| luxurians | L | luxuriant, fromluxurio[7] | Araucaria luxurians | H | DS | C[60] |
| lyratus | L | lyre, fromlyra;[7]lyrate | Arabidopsis lyrata | DS | C[61] | |
| lysistemon | G | loose-stamened | Erythrina lysistemon | D | ||
| macilentus | L | gaunt, frommacies[7] | Archaeopteris macilenta | H | DS | |
| macrophyllus | G | big-leaved | Ficus macrophylla | H | DS | C[62] |
| maculosus | L | spotted[7] | Flindersia maculosa | H | DS | C[63] |
| maculatus | H | DS | C[64] | |||
| maculifer | D | |||||
| magnificus | L | magnificent[7] | Cercidiphyllum magnificum | H | D | C[65] |
| magnus | L | big | Crateva magna | H | DS | |
| major | L | bigger. Stearn also listsmajus.[4][37] Frommaior, neutermaius.[7] | Plantago major | H | DS | C[66] |
| majalis | L | (flowering in) May, fromMaius[7] | Convallaria majalis | H | D | C[67] |
| majesticus | L | majestic, frommaiestas[7] | Brillantaisia majestica* | D | ||
| malacoides | G | soft | Eremophila malacoides | H | D | |
| mammillaris | L | nippled, frommamilla[7] | Mammillaria mammillaris,Erica mammosa | H | D | |
| mammiformis | DS | |||||
| mammillatus | H | DS | ||||
| mammosus | H | DS | ||||
| manicatus | L | long-sleeved[7] | Gunnera manicata | H | DS | C[68] |
| manipuliflorus | L | with small bundles of flowers, frommanipulus, a handful[7] | Erica manipuliflora | DS | ||
| margaritaceus | L | pearly, frommargarita[7] | Anaphalis margaritacea | H | DS | C[43] |
| margaritus | H | D | ||||
| margaritifer | H | D | ||||
| marginalis | L | bordered, frommargino[7] | Banksia marginata | H | DS | C[69] |
| marginatus | H | DS | C[70] | |||
| marginellus | D | |||||
| maritimus | L | maritime[7] | Pancratium maritimum | H | DS | C[53] |
| marmoreus | L | marble[7] | Sempervivum marmoreum,Kalanchoe marmorata | H | DS | C[71] |
| marmoratus | H | DS | ||||
| mas | L | with masculine qualities[7] | Cornus mas | H | DS | C[72] |
| masculus | H | DS | ||||
| matronalis | L | matronly[7] | Hesperis matronalis | D | C[73] | |
| maxillaris | L | jaw, frommaxilla[7] | Bulbophyllum maxillare | H | D | |
| maximus | L | biggest. (Alsomax.)[74] | Heracleum maximum | H | DS | C[64] |
| medicus | L | medicinal[7] | Citrus medica | H | DS | C[39] |
| medius | L | medium or middle[7] | Campanula medium | H | DS | C[33] |
| medullaris | L | pithy, frommedulla, marrow[7] | Sphaeropteris medullaris | H | D | |
| medullus | H | D | ||||
| megacarpus | G | with big fruit | Schoenus megacarpus | H | DS | |
| megalophyllus | G | with big leaves | Muniria megalophylla | H | DS | C[12] |
| megeratus | G | very lovely | Rhododendron megeratum* | D | ||
| meiacanthus | G | little-spined | Mammillaria meiacantha* | DS | ||
| melancholicus | L | melancholy[7] | Besleria melancholica* | DS | ||
| melanoxylon | G | with black wood | Acacia melanoxylon | H | S | |
| mellitus | L | honey[7] | Navarretia mellita | H | DS | |
| melleus | DS | |||||
| mellifer | H | D | C[75] | |||
| melliodorus | L | honey-scented. Stearn also listsmeliodorus. | Eucalyptus melliodora | H | D | |
| meloformis | L | melon-shaped | Euphorbia meloformis | H | D | |
| membranaceus | L | membranous, frommembrana[7] | Scadoxus membranaceus | H | DS | |
| meniscifolius | L | crescent-leaved | Serpocaulon meniscifolium* | H | DS | |
| meridianus | L | (flowering at) midday; southern[7] | Caladenia meridionalis | H | D | |
| meridionalis | H | DS | C[76] | |||
| metallicus | L | metal, frommetallum[7] | Calochilus metallicus | H | DS | C[77] |
| micans | L | sparkling[7] | Shorea micans | DS | ||
| micranthus | G | small-flowered | Eremophila micrantha | H | DS | C[62] |
| militaris | L | military[7] | Orchis militaris | H | D | |
| millefolius | L | thousand-leaved, frommille[7] | Potentilla millefolia | H | DS | C[78] |
| mimetes | G | mimic | Senecio mimetes* | D | ||
| minax | L | menacing[7] | Bulbophyllum minax | D | ||
| miniatus | L | red-tinged[7] | Aechmea miniata | H | DS | C[79] |
| minimus | L | smallest[7] | Salvinia minima | H | DS | C[80] |
| minor | L | smaller. Stearn also listsminus.[4][81] Fromminor, neuterminus.[7] | Vinca minor | H | DS | C[82] |
| minutus | L | minute[7] | Marsilea minuta | H | DS | |
| minutissimus | L | minutest | Bulbophyllum minutissimum | H | D | |
| mirabilis | L | amazing[7] | Nepenthes mirabilis | H | D | C[55] |
| mitis | L | gentle[7] | Caryota mitis | H | DS | |
| mitratus | L | turbaned[7] | Blepharis mitrata | H | D | |
| mitriformis | H | DS | ||||
| mixtus | L | hybrid;[7] mixed | Passiflora mixta | H | DS | |
| modestus | L | modest[7] | Carpobrotus modestus | H | D | C[83] |
| mollis | L | soft[7] | Leymus mollis | H | DS | C[84] |
| mollissimus | L | softest | Castanea mollissima | H | D | C[85] |
| monilifer | L | necklace, frommonile[7] | Allocasuarina monilifera,Consolea moniliformis | H | D | |
| moniliformis | H | DS | ||||
| monogynus | G | single-ovaried | Crataegus monogyna | H | DS | C[86] |
| monstrosus | L | monstrous, frommonstruosus[7] | Aegiphila monstrosa | H | DS | |
| montanus | L | mountain.[7] (Alsomontensis.)[4] | Asplenium montanum,Acacia monticola | H | DS | C[87] |
| monticola | H | D | ||||
| montigenus | H | D | ||||
| moschatus | G | musky | Cucurbita moschata | H | DS | C[88] |
| mucosus | L | slimy, frommucus, mucus[7] | Euryops mucosus | H | DS | |
| mucronatus | L | sharp-edged, frommucro, sword-point or edge;[7]mucronate | Ziziphus mucronata | H | DS | C[89] |
| mucronulatus | L | short-pointed | Grevillea mucronulata | H | D | C[90] |
| multifidus | L | divided into many parts[7] | Leucospora multifida | H | DS | C[91] |
| mundulus | L | elegant, frommundus[7] | Hackelia mundula | H | D | |
| muralis | L | wall[7] | Cymbalaria muralis | H | DS | C[92] |
| musaicus | L | mosaic. Stearn also listsmosaicus. | Guzmania musaica | H | DS | |
| muscitoxicus | L | toxic to flies | Amianthium muscitoxicum | D | ||
| muscivorus | L | fly-eating, fromvoro[7] | Helicodiceros muscivorus | H | D | |
| muscosus | L | mossy[7] | Crassula muscosa | H | DS | |
| muscoides | H | D | ||||
| mutabilis | L | mutable[7] | Hibiscus mutabilis | H | DS | C[93] |
| mutatus | L | changed[7] | Apoballis mutata* | H | DS | |
| mutilatus | L | mutilated; blunt. Frommutilus.[7] | Cirsium muticum | H | DS | |
| muticus | H | DS | ||||
| myriophyllus | G | myriad-leaved | Pilea myriophylla | H | DS | |
| myrmecophilus | G | ant-loving | Hylaeaicum myrmecophila | H | DS | |
| nanus | L | dwarf[7] | Boronia nana | H | DS | C[48] |
| nanellus | H | D | ||||
| nasutus | L | large-nosed; scornful[7] | Erythranthe nasuta | D | ||
| natans | L | floating, fromnato[7] | Trapa natans | H | DS | |
| nauseosus | L | disgusting, fromnauseo[7] | Dypsis nauseosa | H | DS | |
| navicularis | L | boat-shaped, fromnavicula, a small boat[7] | Micromyrtus navicularis | H | DS | C[30] |
| nebulosus | L | cloudy[7] | Eucalyptus nebulosa | H | DS | |
| neglectus | L | neglected[7] | Stellaria neglecta | H | DS | C[94] |
| nemorosus | L | forest[7] | Anemonoides nemorosa | H | DS | C[91] |
| nemoralis | H | DS | C[95] | |||
| nervosus | L | veined, originally fromnervus[7] | Liparis nervosa | H | DS | C[59] |
| nervatus | D | |||||
| nervis | H | DS | ||||
| neurocarpus | G | veined-fruit | Acacia neurocarpa | D | ||
| nictitans | L | blinking; moving | Chamaecrista nictitans | H | D | |
| nidus | L | nest[7] | Asplenium nidus | H | DS | |
| niger | L | black.[7] Femininenigra, neuternigrum. | Piper nigrum | H | DS | C[96] |
| nigrescens | L | blackish, fromnigresco[7] | Pyrorchis nigricans | H | DS | |
| nigricans | H | DS | C[97] | |||
| nigratus | H | D | ||||
| nitidus | L | shining[7] | Calochortus nitidus | H | DS | C[83] |
| nitens | H | DS | ||||
| nivalis | L | snow[7] | Galanthus nivalis | H | DS | C[98] |
| niveus | H | DS | C[99] | |||
| nivosus | H | DS | ||||
| nobilis | L | celebrated[7] | Laurus nobilis | H | D | C[78] |
| nocturnus | L | night[7] | Cestrum nocturnum | H | DS | C[100] |
| nodosus | L | knobby[7] | Ficinia nodosa | H | DS | |
| nodulosus | H | DS | ||||
| non-scriptus | L | unmarked, fromscriptus[7] | Hyacinthoides non-scripta | H | D | C[101] |
| notatus | L | marked[7] | Paspalum notatum | H | DS | |
| nothus | G | false | Iris notha | DS | ||
| nubigenus | L | high-altitude, fromnubigena, cloud-born[7] | Podocarpus nubigenus | H | D | C[27] |
| nubicola | H | D | ||||
| nucifer | L | nut-bearing, fromnux[7] | Cocos nucifera | H | DS | |
| nudus | L | naked[7] | Genoplesium nudum | H | DS | C[102] |
| nudatus | H | D | ||||
| nummularius | L | coin, fromnummulus[7] | Atriplex nummularia | H | D | C[103] |
| nutans | L | nodding[7] | Silene nutans | H | DS | C[104] |
| nyctagineus | G | night-born (night-blooming) | Mirabilis nyctaginea | H | D | |
| obconicus | L | inverted cone, fromconus[7] | Eucalyptus obconica | H | DS | |
| obesus | L | fat[7] | Adenium obesum | H | DS | |
| oblatus | L | oblate (round and slightly flattened). Fromlatus, wide.[7] | Syringa oblata | H | DS | |
| obliquus | L | slanting;[7]oblique | Ficus obliqua | H | DS | C[42] |
| obliteratus | L | erased, fromoblitero;[7] imperceptible | Nephrolepis obliterata | DS | ||
| oblongus | L | oblong[7] | Cydonia oblonga | H | DS | C[55] |
| oblongatus | H | D | ||||
| obovatus | L | obovate (reversedovate). Fromovum, egg.[7] | Adenanthos obovatus | H | DS | C[105] |
| obscurus | L | obscure;[7] dark | Dendrolycopodium obscurum | H | DS | C[106] |
| obsoletus | L | shabby[7] | Narcissus obsoletus | DS | ||
| obtectus | L | covered; protected[7] | Acacia obtecta | H | S | |
| obtusus | L | obtuse[7] | Galium obtusum | H | DS | C[100] |
| obtusatus | H | DS | ||||
| obvallatus | L | fortified;[7] walled | Geophila obvallata* | H | DS | |
| obvallaris | D | C[107] | ||||
| occidentalis | L | western, fromoccidens[7] | Platanus occidentalis | H | DS | C[48] |
| occultus | L | hidden[7] | Dalbergia occulta | H | S | |
| ocellatus | L | eyespot, fromocellus, little eye[7] | Viola ocellata | H | DS | |
| ochraceus | G | ochre | Tabebuia ochracea | H | DS | C[108] |
| octopetalus | L | eight-petalled, fromocto[7] | Dryas octopetala | H | DS | C[109] |
| oculatus | L | eyespot, fromoculus, eye[7] | Verticordia oculata | H | D | |
| odoratus | L | fragrant[7] | Lathyrus odoratus | H | DS | C[94] |
| odorifer | H | DS | ||||
| odorus | H | DS | C[26] | |||
| odoratissimus | L | most fragrant | Artocarpus odoratissimus | H | D | C[110] |
| officinalis | L | medicinal[h] | Zingiber officinale | H | DS | C[92] |
| officinarum | H | D | ||||
| oleifer | L | oil-bearing, fromoleum, oil[7] | Moringa oleifera | H | D | C[111] |
| oleraceus | L | kitchen-garden, fromolus[7] | Sonchus oleraceus | H | DS | C[78] |
| olitorius | H | DS | ||||
| oligocarpus | G | with few fruits | Annona oligocarpa | H | DS | |
| olivaceus | L | green-brown, fromoliva, olive[7] | Lithops olivacea | H | DS | |
| opacus | L | darkened; in the shade[7] | Ilex opaca | H | S | |
| operculatus | L | lidded, fromoperculum, a covering[7] | Luffa operculata | H | S | |
| oporinus | G | autumn | Diuris oporina | D | ||
| oppositifolius | L | opposite-leaved, fromoppositus[7] | Myoporum oppositifolium | H | DS | C[112] |
| orbiculatus | L | circular, fromorbis, ring;[7]orbicular | Celastrus orbiculatus | H | DS | C[38] |
| orbicularis | H | DS | ||||
| oreophilus | G | mountain | Sarracenia oreophila | H | DS | C[96] |
| oresbius | H | DS | ||||
| orgyalis | G | fathom-long | Kalanchoe orgyalis | DS | ||
| orientalis | L | eastern, fromoriens[7] | Platanus orientalis | H | DS | C[12] |
| ornatus | L | ornamented.[7] (Alsoornans.)[4] | Musa ornata | H | DS | C[66] |
| ornatissimus | L | most ornamented | Downingia ornatissima | H | D | |
| orthocarpus | G | straight-fruited | Acacia orthocarpa | H | DS | |
| osmanthus | G | fragrant-flowered | Attalea osmantha | H | DS | |
| ovatus | L | ovate, fromovum, egg[7] | Trillium ovatum | H | DS | C[113] |
| ovalis | H | DS | ||||
| ovifer | L | egg-bearing, fromovum[7] | Pachyphytum oviferum,Pandanus oviger* | D | ||
| oviger | D | |||||
| ovinus | L | sheep, fromovis[7] | Festuca ovina | H | DS | C[61] |
| oxyphyllus | G | sharp-leaved | Melaleuca oxyphylla | H | DS | C[114] |
| pabularis | L | fodder, frompabulum[7] | Barleria pabularis* | DS | ||
| pachycarpus | G | thick-fruited | Corymbia pachycarpa | H | DS | C[115] |
| paganus | L | of villages[7] | Rubus paganus | H | ||
| pallidus | L | pale[7] | Lycium pallidum | H | DS | C[116] |
| pallens | H | DS | ||||
| pallescens | H | DS | ||||
| palmaris | L | palm's-width | Chromolaena palmaris* | H | DS | |
| palmatus | L | hand-shaped, frompalma;[7]palmate | Diplocyclos palmatus | H | DS | C[62] |
| palustris | L | marsh, frompalus[7] | Banksia paludosa | H | DS | C[30] |
| paludosus | H | DS | ||||
| panduratus | L | fiddle-shaped;pandurate | Ipomoea pandurata | H | DS | |
| paniculatus | L | panicled | Toxicoscordion paniculatum | H | DS | C[117] |
| pannosus | L | tattered[7] | Cotoneaster pannosus | H | DS | |
| papilio | L | butterfly | Bulbophyllum papilio | H | ||
| papillosus | L | papillose, frompapilla, nipple[7] | Sphagnum papillosum | DS | ||
| papilliger | D | |||||
| papyraceus | L | paper. (Alsopapyrus.)[4] | Narcissus papyraceus | H | DS | C[107] |
| papyrifer | H | D | C[48] | |||
| paradisiacus | G | paradise; garden | Cipura paradisiaca* | H | D | |
| paradisi | H | D | ||||
| paradoxus | G | unusual | Dissocarpus paradoxus | H | D | C[118] |
| parasiticus | L | parasitic, fromparasitus[7] | Macrosolen parasiticus | H | DS | |
| pardalinus | L | leopard, frompardus.[7] (Alsopardinus.)[4] | Lilium pardalinum | H | D | C[119] |
| parmulatus | L | shield, fromparmula[7] | Rhododendron parmulatum* | D | ||
| partitus | L | divided[7] | Klattia partita* | H | DS | |
| parvus | L | small | Camissonia parvula | H | DS | |
| parvulus | D | C[120] | ||||
| pastoralis | L | of shepherds | Meryta pastoralis* | DS | ||
| patellaris | L | dish, frompatella[7] | Eucalyptus patellaris | D | ||
| patelliformis | DS | |||||
| patens | L | spreading out[7] | Physcomitrella patens | H | DS | C[117] |
| patulus | H | DS | C[121] | |||
| pauciflorus | L | sparse-flowered, frompaucus[7] | Stephanomeria pauciflora | H | DS | C[23] |
| pauperculus | L | poor[7] | Astragalus pauperculus | H | D | |
| pavoninus | L | peacock blue, frompavo;[7] eye-spotted | Anemone pavonina* | H | DS | C[91] |
| pectinatus | L | comb, frompecten;[7]pectinate | Echinocereus pectinatus | H | DS | C[122] |
| pectinifer | D | |||||
| pectoralis | L | chest, frompectus[7] | Justicia pectoralis | H | D | |
| peculiaris | L | peculiar[7] | Trachyandra peculiaris | H | S | |
| pedalis | L | foot-long[7] | Indocalamus pedalis* | DS | ||
| pedatifidus | L | bird's-foot;pedate. Frompes, foot.[7] | Viola pedatifida,Sidalcea pedata | H | D | C[123] |
| pedatus | H | DS | C[124] | |||
| pedunculosus | L | peduncled | Lotus pedunculatus | H | D | C[125] |
| peduncularis | H | DS | ||||
| pedunculatus | H | DS | ||||
| pellucidus | L | transparent, fromperlucidus;[7]pellucid | Tetraphis pellucida | H | DS | |
| peltatus | L | shield-bearing;[7]peltate | Pelargonium peltatum | H | DS | C[26] |
| pelviformis | L | shallow, frompelvis, basin[7] | Campanula pelviformis* | H | DS | |
| pendulus | L | hanging[7] | Betula pendula | H | DS | C[48] |
| pendulinus | H | DS | C[28] | |||
| penicillatus | L | paint-brush, frompenicillus;[7]penicillate. (Alsopenicillius.)[4] | Banksia penicillata | H | DS | |
| peninsularis | L | peninsula, frompeninsula[7] | Argyrochosma peninsularis | H | DS | |
| pennatus | L | feathered;pinnate. Frompinnatus.[7] | Stipa pennata | H | DS | |
| penniger | L | feathered, frompenna[7] | Verticordia pennigera | H | D | |
| pensilis | L | hanging[7] | Glyptostrobus pensilis | H | D | |
| pentaphyllus | G | five-leaved | Gynostemma pentaphyllum | H | DS | C[62] |
| peramoenus | L | very pleasant[7] | Platanthera peramoena | D | ||
| perbellus | L | beautiful[7] | Veronica perbella* | H | D | |
| percussus | L | perforated[7] | Goniophlebium percussum* | D | ||
| peregrinus | L | foreign[7] | Comptonia peregrina | H | DS | C[67] |
| perennis | L | year-long; perennial[7] | Mercurialis perennis | H | DS | C[126] |
| perennans | DS | |||||
| perfoliatus | L | perfoliate | Eupatorium perfoliatum | H | DS | C[127] |
| perfossus | DS | |||||
| perforatus | L | perforated, fromperforo[7] | Hypericum perforatum | H | DS | C[128] |
| pergracilis | L | very slender, fromgracilis[7] | Psydrax pergracilis | H | D | |
| permixtus | L | intermingled[7] | Rubus permixtus | D | ||
| persimilis | L | very similar[7] | Crataegus persimilis | D | C[86] | |
| persistens | L | persisting, frompersisto[7] | Calochortus persistens | H | DS | |
| perspicuus | L | transparent[7] | Rubus perspicuus | H | DS | |
| pertusus | L | perforated[7] | Bothriochloa pertusa | H | DS | |
| perulatus | L | perulate | Enkianthus perulatus | H | DS | C[129] |
| perutilis | L | very useful[7] | Aniba perutilis* | DS | ||
| petaloideus | G | petal-like | Gunnera petaloidea | H | DS | |
| petiolaris | L | petiolate | Banksia petiolaris | H | DS | C[130] |
| petiolatus | H | DS | ||||
| petraeus | L | rock, frompetra, rock or cliff[7] | Quercus petraea | H | DS | C[131] |
| phaeus | G | dark brown or grey | Geranium phaeum | H | DS | C[132] |
| phyllomaniacus | G | profusely leafy | Begonia phyllomaniaca* | D | ||
| picturatus | L | embroidered[7] | Festuca picturata | H | D | C[133] |
| pictus | L | painted[7] | Diplacus pictus | H | DS | C[65] |
| pileatus | L | skull-capped;[7]pileate | Eucalyptus pileata | H | DS | C[134] |
| pilosus | L | hairy;[7]pilose. (Alsopilosulus.)[124] | Xanthosia pilosa | H | DS | C[135] |
| pilifer | H | DS | ||||
| pilularis | G | globular (the fruit), frompila, ball[7] | Eucalyptus pilularis | H | D | C[136] |
| pilulifer | H | D | ||||
| pinguifolius | L | with waxy or thick leaves, frompinguis, fat[7] | Acacia pinguifolia | H | DS | C[108] |
| pinnatus | L | feathered;[7]pinnate | Alloxylon pinnatum | H | DS | C[137] |
| piperitus | L | peppery, frompiper[7] | Zanthoxylum piperitum | H | D | C[138] |
| planus | L | flat[7] | Eleocharis plana | H | DS | C[139] |
| platyphyllus | G | broad-leaved. (Alsoplatyphyllos.)[4] | Eucalyptus platyphylla | H | DS | C[48] |
| plebeius | L | plebeian[7] | Veronica plebeia | D | ||
| plenus | L | double; full | Corymbia plena | H | DS | |
| plenissimus | H | D | ||||
| pleurostachys | G | side-spiked | Orleanesia pleurostachys* | DS | ||
| plicatus | L | pleated, fromplico;[7]plicate | Thuja plicata | H | DS | C[81] |
| plumarius | L | plumed, frompluma;[7]plumose | Dianthus plumarius | H | D | |
| plumatus | D | |||||
| plumosus | H | DS | ||||
| plumbeus | L | leaden[7] | Merwilla plumbea | H | DS | |
| pluriflorus | L | many-flowered, fromplurimus;[7]pluriflor | Sannantha pluriflora | H | DS | |
| pluvialis | L | rainy-day[7] | Caladenia pluvialis | H | S | |
| pocophorus | G | woolly | Rhododendron pocophorum* | H | D | |
| poculiformis | G | goblet-shaped[7] | Eragrostis poculiformis* | DS | ||
| podagricus | G | gout, frompodagra.[7] (Alsopodagraria.)[4] | Jatropha podagrica | D | ||
| poeticus | L | of poets[7] | Narcissus poeticus | H | D | C[107] |
| poetarum | D | |||||
| pogonanthus | G | bearded-flower | Abronia pogonantha | DS | ||
| polaris | L | polar or far northern | Salix polaris | H | S | |
| polifolius | G | Greek: grey + Latin: leaf | Kalmia polifolia | H | D | |
| politus | L | polished[7] | Gasteria polita | H | DS | |
| polycarpus | G | many-fruited | Corymbia polycarpa | H | DS | C[47] |
| pomeridianus | L | afternoon[7] | Chlorogalum pomeridianum | H | DS | |
| pomifer | L | fruit-bearing;[7]pome-bearing | Maclura pomifera | H | D | C[140] |
| pomponius | L | ostentatious, frompompa;[7] tufted | Lilium pomponium | H | D | |
| ponderosus | L | weighty[7] | Pinus ponderosa | H | DS | C[121] |
| porophyllus | G | (apparently) porous-leaved | Saxifraga porophylla* | H | D | |
| porphyreus | G | purple; purple-red | Sedum porphyreum | H | DS | |
| porrigens | L | spreading, fromporrigo[7] | Galium porrigens | H | ||
| potamophilus | G | river | Sebastiania potamophila | H | DS | |
| potatorum | L | of drinkers | Agave potatorum | H | D | C[87] |
| praealtus | L | very high[7] | Calochilus praealtus | H | D | |
| praecox | L | early-ripening, fromcoquo[7] | Agapanthus praecox | H | DS | C[18] |
| praemorsus | L | (apparently) nibbled, frommorsus[7] | Acacia praemorsa | H | DS | |
| praeruptorum | L | (inhabitant) of rough places, frompraeruptus, rugged[7] | Dicymbe praeruptorum* | H | S | |
| praestans | L | pre-eminent[7] | Vaccinium praestans | H | D | C[141] |
| praeteritus | L | departed; overlooked[7] | Castilleja praeterita | DS | ||
| praetermissus | L | overlooked, frompraetermitto[7] | Eucalyptus praetermissa | DS | C[142] | |
| praetextus | L | bordered; disguised[7] | Cryptanthus praetextus | H | DS | |
| praevernus | L | before the spring, fromvernus[7] | Rhododendron praevernum* | D | ||
| pratensis | L | meadow[7] | Trifolium pratense | H | DS | C[132] |
| pravissimus | L | most crooked, frompravus[7] | Acacia pravissima | H | D | C[118] |
| precatorius | L | prayer, fromprecator, suppliant[7] | Euterpe precatoria | D | ||
| preptus | G | distinguished | Rhododendron preptum* | D | ||
| princeps | L | foremost[7] | Roystonea princeps | H | D | |
| prismaticus | G | prism | Iris prismatica | H | DS | |
| proboscideus | G | long-snouted | Bulbophyllum proboscideum | H | DS | C[143] |
| procerus | L | tall[7] | Abies procera | H | DS | C[65] |
| procumbens | L | near the ground, fromprocumbo;[7]procumbent | Juniperus procumbens | H | DS | C[64] |
| procurrens | L | extending, fromprocurro[7] | Arabis procurrens | H | DS | C[144] |
| prodigiosus | L | prodigious[7] | Phyllolobium prodigiosum* | H | ||
| productus | L | extended, fromproduco[7] | Costus productus* | H | DS | |
| prolifer | L | proliferous, fromproles, offshoot[7] | Isolepis prolifera | H | DS | C[96] |
| prolificus | L | prolific; proliferous | Hypericum prolificum | H | DS | C[128] |
| pronus | L | tilted forward[7] | Dracophyllum pronum | DS | ||
| propinquus | L | kindred[7] | Eucalyptus propinqua | H | DS | C[143] |
| prostratus | L | on the ground;[7]prostrate | Ceanothus prostratus | H | DS | C[17] |
| protistus | G | very first | Rhododendron protistum | H | ||
| protrusus | L | protruding, fromprotrudo[7] | Melaleuca protrusa | DS | ||
| pruinatus | L | (apparently) frosted, frompruina;[7]pruinose | Begonia pruinata* | H | DS | |
| pruinosus | H | DS | ||||
| pruriens | L | itchy, fromprurio[7] | Mucuna pruriens | DS | ||
| psilostemon | G | smooth-stamened | Geranium psilostemon | H | DS | C[132] |
| psittacinus | L | parrot, frompsittacus[7] | Impatiens psittacina,Heliconia psittacorum | H | DS | |
| psittacorum | H | D | ||||
| pteroneurus | G | winged-vein | Cnidoscolus pteroneurus* | H | DS | |
| pubescens | L | fuzzy, frompubesco;[7]pubescent | Betula pubescens | H | DS | C[48] |
| pubiger | H | D | ||||
| pubens | H | DS | ||||
| pudicus | L | shy[7] | Mimosa pudica | H | D | C[145] |
| puderosus | D | |||||
| pugioniformis | L | dagger-shaped, frompugio[7] | Dendrobium pugioniforme | H | DS | |
| pulcher | L | beautiful.[7] Femininepulchra, neuterpulchrum. | Senecio pulcher | H | DS | C[146] |
| pulchellus | H | DS | C[92] | |||
| pullus | L | blackish[7] | Piaranthus pullus* | H | DS | C[22] |
| pulverulentus | L | powdery, frompulvis;[7]pulverulent | Eucalyptus pulverulenta | H | DS | C[147] |
| pulvinatus | L | cushiony, frompulvinus;[7]pulvinate | Grimmia pulvinata | H | DS | C[148] |
| pumilus | L | dwarf. (Alsopumilio.)[4] | Ficus pumila | H | DS | C[85] |
| punctatus | L | dotted, originally frompunctum, point or puncture;[7]punctate | Monarda punctata | H | DS | C[94] |
| pungens | L | pricking, frompungo;[7]pungent | Picea pungens | H | DS | C[149] |
| purgans | L | purgative, frompurgo[7] | Saurauia purgans* | D | ||
| purpureus | L | purplish[7] | Ceratodon purpureus | H | DS | C[142] |
| purpuratus | L | royal;[7] purplish | Eucalyptus purpurata | H | DS | C[92] |
| purpurascens | L | light purple, frompurpurasco.[7] (Alsopurpurellus.)[142] | Calamagrostis purpurascens | H | DS | C[150] |
| pusillus | L | tiny[7] | Potamogeton pusillus | H | DS | |
| pustulatus | L | (apparently) blistered, frompustula, pustule;[7]pustulate | Eremophila pustulata | H | DS | |
| pycnanthus | G | densely flowering | Acacia pycnantha | H | S | |
| pyramidalis | L | pyramidal, frompyramis[7] | Anacamptis pyramidalis | H | DS | C[116] |
| pyramidatus | D | |||||
| pyxidatus | G | lidded box | Eugenia pyxidata* | DS | ||
| quadrifolius | L | four-leaved, fromquattuor, four[7] | Paris quadrifolia | H | DS | C[151] |
| quinatus | L | five-part, fromquinque, five[7] | Akebia quinata | H | DS | C[116] |
| racemosus | L | racemose, fromracemus, cluster[7] | Sambucus racemosa | H | DS | C[124] |
| radiatus | L | radiating;[7]radiate | Lycoris radiata | H | DS | C[121] |
| radians | DS | |||||
| radiosus | H | DS | ||||
| radicans | L | rooting, originally fromradix, root[7] | Toxicodendron radicans | H | DS | C[152] |
| radicatus | H | DS | ||||
| radicosus | H | DS | ||||
| radicum | D | |||||
| radula | L | rasp, originally fromrado, to scrape[7] | Eurybia radula | H | DS | |
| ramentaceus | L | very scaly | Drosera ramentacea* | H | S | |
| ramosus | L | branching, fromramus, branch[7] | Boronia ramosa | H | DS | C[94] |
| ramulosus | H | DS | ||||
| ramosissimus | L | with many branches | Jamesbrittenia ramosissima | H | DS | C[153] |
| rarus | L | rare[7] | Hymenophyllum rarum | DS | ||
| rariflorus | L | sparse-flowered | Rhynchospora rariflora | H | DS | |
| ravus | L | grey, dull yellow or tawny[7] | Miconia rava* | DS | ||
| reclinatus | L | reclined, fromreclino[7] | Phoenix reclinata | H | DS | |
| rectus | L | erect[7] | Eucalyptus recta | H | DS | C[154] |
| recurvus | L | curved back;[7]recurved | Eucalyptus recurva | H | DS | |
| recurvatus | H | DS | C[155] | |||
| recutitus | L | (apparently) skinned, fromcutis, skin[7] | Pedicularis recutita* | DS | ||
| redivivus | L | reviving[7] | Styrax redivivus | H | DS | C[156] |
| reductus | L | reduced, fromreduco[7] | Brocchinia reducta | H | DS | C[29] |
| reflexus | L | bent backwards, fromreflecto;[7]reflexed | Dracaena reflexa | H | DS | C[157] |
| refractus | H | DS | ||||
| refulgens | L | reflecting, fromrefulgeo[7] | Justicia refulgens* | H | D | |
| regalis | L | royal[7] | Roystonea regia,Drosera regia | H | D | C[119] |
| regius | H | D | C[158] | |||
| religiosus | L | sacred[7] | Ficus religiosa | H | D | |
| remotus | L | remote (in distribution)[7] | Pinus remota | H | DS | C[69] |
| reniformis | L | kidney-shaped, fromrenes,[7] kidneys | Utricularia reniformis | H | DS | |
| repandus | L | curling at the edges[7] | Boronia repanda | H | DS | C[55] |
| repens | L | creeping[7] | Trifolium repens | H | DS | C[30] |
| reptans | H | DS | C[159] | |||
| replicatus | L | folded, fromreplico[7] | Lafoensia replicata | H | DS | |
| resinosus | L | resinous, fromresina[7] | Pinus resinosa | H | DS | C[121] |
| resinifer | H | DS | ||||
| resupinatus | L | bent backward, fromresupino[7] | Trifolium resupinatum | DS | ||
| reticulatus | L | net-like, fromreticulum;[7]reticulate | Hippeastrum reticulatum | H | DS | C[111] |
| retortus | L | twisted back, fromretorqueo[7] | Cerinthe retorta* | H | DS | |
| retroflexus | H | DS | ||||
| retrofractus | H | D | ||||
| retusus | L | blunt;[7]retuse | Rhynchostylis retusa | H | DS | C[71] |
| reversus | L | reversed[7] | Alocasia reversa | H | DS | |
| revolutus | L | rolled inward, fromrevolvo;[7]revolute | Orites revolutus | H | DS | C[55] |
| rex | L | king.[7] (Alsoreginae, queen.)[4] | Cattleya rex | H | D | |
| rhabdotus | G | striped | Allium rhabdotum | D | ||
| rhodanthus | G | with rose-red flowers | Eucalyptus rhodantha | H | DS | |
| rhombicus | G | rhombic | Acalypha rhomboidea | DS | ||
| rhomboideus | H | DS | ||||
| rhytidophyllus | G | wrinkled-leaf | Viburnum rhytidophyllum | H | DS | C[110] |
| rigens | L | rigid.[7] (Also rigescens.)[4][160] | Muhlenbergia rigens | H | DS | C[161] |
| rigidus | H | DS | C[146] | |||
| ringens | L | gaping, fromringor[7] | Melaleuca ringens | H | DS | C[143] |
| riparius | L | riverside, fromripa, riverbank[7] | Vitis riparia | H | DS | C[123] |
| rivalis | L | brook[7] | Calyptronoma rivalis | H | DS | C[162] |
| rivularis | H | DS | C[91] | |||
| robustus | L | strong; solid[7] | Metrosideros robusta | H | DS | C[163] |
| rostratus | L | beaked;[7]rostrate | Eremophila rostrata | H | DS | C[164] |
| rotatus | L | circular, fromrota, wheel;[7]rotate | Hymenocallis rotata | H | DS | |
| rotundus | L | round[7] | Cyperus rotundus | H | DS | |
| rotundatus | H | DS | ||||
| ruber | L | red.[7] Femininerubra, neuterrubrum. | Acer rubrum | H | DS | C[50] |
| rubens | H | DS | ||||
| rubescens | L | pale red, fromrubesco[7] | Calamagrostis rubescens | H | DS | |
| rubellus | H | DS | ||||
| rubiginosus | L | rusty-red, fromrubigo, rust[7] | Ficus rubiginosa | H | DS | C[165] |
| rudis | L | untilled; rough[7] | Eucalyptus rudis | H | DS | |
| rufus | L | reddish[7] | Pterostylis rufa | H | DS | |
| rufescens | D | |||||
| rugosus | L | wrinkled;[7]rugose | Rosa rugosa | H | DS | C[87] |
| runcinatus | L | saw-toothed;runcinate | Crepis runcinata | DS | ||
| rupestris | L | rock or cliff, fromrupes;[7]rupicolous | Brachychiton rupestris | H | DS | C[87] |
| rupicola | H | D | ||||
| rupifragus | L | rock-cleaving | Salix rupifraga | H | D | C[166] |
| russatus | L | russet, fromrussus[7] | Brachyotum russatum | H | D | |
| rusticanus | L | countryside[7] | Armoracia rusticana | H | DS | C[53] |
| rusticus | H | D | C[167] | |||
| rutilans | L | reddish, fromrutilo[7] | Nidularium rutilans | H | DS | |
| saccatus | L | bag, fromsaccus;[7]saccate | Persoonia saccata,Manicaria saccifera | H | DS | |
| saccifer | H | D | ||||
| saccharatus | G | sugared (in flavour or appearance) | Caladenia saccharata | H | DS | |
| saccharifer | G | sugary. (Alsosaccharum.)[6][168] | Acer saccharinum,Vitis saccharifera* | DS | C[168] | |
| saccharinus | H | DS | C[168] | |||
| sagittalis | L | arrow, fromsagitta;[7]sagittate. (Alsosagittatus.)[4] | Crotalaria sagittalis | H | DS | |
| salinus | L | salt, fromsal[7] | Drosera salina | H | DS | |
| salsuginosus | L | salt marsh, fromsalsus[7] | Castilleja salsuginosa | DS | ||
| sanctus | L | holy[7] | Anacamptis sancta | H | D | |
| sanguineus | L | bloody[7] | Broughtonia sanguinea | H | DS | C[157] |
| sapidus | L | tasty, fromsapio, to have a flavour[7] | Lissanthe sapida | H | DS | |
| saponaceus | L | soapy. (Alsosaponarius.)[4] | Solanum saponaceum* | DS | ||
| sarcodes | G | fleshy | Oncidium sarcodes | H | D | |
| sarmentosus | L | sarmentose, fromsarmentum, twig[7] | Piper sarmentosum | H | DS | C[43] |
| sativus | L | cultivated, fromsero[7] | Cannabis sativa | H | DS | C[96] |
| saturatus | L | colour-saturated[7] | Taraxacum saturatum* | DS | ||
| savannarum | L | savanna.Neo-Latin, from a 16th-centuryTaíno word.[10] | Iris savannarum | DS | ||
| saxatilis | L | rock-dwelling, fromsaxum;[7]saxicolous. (Alsosaxorum, rock,[4] andsaxifraga, rock-breaker.)[4] | Mimetes saxatilis,Acacia saxicola,Dudleya saxosa | H | DS | C[47] |
| saxicola | H | DS | ||||
| saxosus | H | DS | ||||
| scaber | L | rough;[7]scabrid. Femininescabra, neuterscabrum. (Alsoscabiosus.)[4] | Boronia scabra | H | DS | C[146] |
| scalaris | L | ladder, fromscalae[7] | Vriesea scalaris | H | DS | C[29] |
| scandens | L | climbing, fromscando;[7]scandent | Cobaea scandens | H | DS | C[38] |
| scapiger | L | scaped;scapose | Caltha scaposa,Isotoma scapigera | DS | ||
| scaposus | H | DS | ||||
| scariosus | L | filmy;scarious | Cyperus scariosus | H | DS | C[169] |
| scarlatinus | L | scarlet | Bromelia scarlatina | DS | ||
| sceleratus | L | toxic | Ranunculus sceleratus | DS | ||
| sceptrum | L | sceptre[7] | Banksia sceptrum | H | D | |
| schidigerus | G | Greek: splinter + Latin: bearing | Yucca schidigera | H | ||
| schistocalyx | G | with a split calyx | Rhododendron schistocalyx* | D | ||
| schizopetalus | G | split-petalled | Hibiscus schizopetalus | H | DS | |
| scholaris | L | school, fromschola,[7] school or debate | Alstonia scholaris | DS | ||
| scintillans | L | shining, fromscintillo[7] | Schizachyrium scintillans*,Triodia scintillans | D | ||
| sclerocarpus | G | hard-fruited | Metrosideros sclerocarpa | D | ||
| scoparius | L | broom, fromscopae[7] | Leptospermum scoparium,Cytisus scoparius | H | DS | C[170] |
| scopulorum | L | cliff, fromscopulus[7] | Eucalyptus scopulorum | H | DS | C[144] |
| scorpioides | L | scorpion, fromscorpio;[7]scorpioid | Myosotis scorpioides | H | DS | |
| scrobiculatus | L | dimpled, fromscrobis, ditch;[7]scrobiculate | Eremophila scrobiculata | DS | ||
| sculptus | L | carved[7] | Epidendrum sculptum | DS | ||
| scutatus | L | shield, fromscutum.[7] (Alsoscutellaris,[4]scutellatus.)[4] | Rumex scutatus | DS | C[171] | |
| sebifer | L | fatty; oily. Fromsebum.[7] | Triadica sebifera,Geranium sebosum* | DS | ||
| sebosus | DS | |||||
| seclusus | L | secluded[7] | Acacia seclusa | D | ||
| secundus | L | second;[7]secund. (Alsosecundatus.)[4] | Epidendrum secundum | H | DS | C[172] |
| securiger | L | axe-bearing[7] | Tritonia securigera* | D | ||
| segetum | L | grainfield, fromseges[7] | Glebionis segetum,Nigella segetalis* | H | DS | C[76] |
| segetalis | H | DS | ||||
| semperflorens | L | ever-blooming, fromsemper, always[7] | Bulbophyllum semperflorens | H | DS | |
| sempervirens | L | evergreen | Sequoia sempervirens | H | DS | C[168] |
| senescens | L | greying, fromsenesco[7] | Allium senescens | H | DS | C[96] |
| senilis | L | aged;[7] white-haired | Cephalocereus senilis | H | D | C[50] |
| sensitivus | L | sensitive, fromsentio;[7]sensitive | Biophytum sensitivum,Onoclea sensibilis | H | DS | |
| sensibilis | H | DS | ||||
| senticosus | L | thorny, fromsentus[7] | Eleutherococcus senticosus | DS | ||
| sepiarius | L | hedge, fromsepes[7] | Calystegia sepium,Drypetes sepiaria | DS | ||
| sepium | H | DS | ||||
| septemfidus | L | cut into seven parts, fromseptem, seven.[7] | Gentiana septemfida | H | DS | C[161] |
| septentrionalis | L | northern[7] | Asplenium septentrionale | H | DS | |
| sepulcralis | L | graveyard, fromsepulcrum[7] | Eucalyptus sepulcralis | DS | C[173] | |
| sepultus | L | buried[7] | Euphorbia sepulta* | D | ||
| sericifer | L | silky, fromsericus;[7]sericeous | Adenanthos sericeus,Araujia sericifera | D | C[144] | |
| sericeus | H | DS | C[157] | |||
| serotinus | L | late-blooming, fromsero, late[7] | Gagea serotina | H | DS | C[174] |
| serpens | L | creeping[7] | Eremophila serpens | H | DS | |
| serpentinus | L | serpentine | Rauvolfia serpentina,Melaleuca serpentina | DS | ||
| serratus | L | toothed, fromserra, saw;[7]serrate. (Alsoserrula.)[21] | Banksia serrata | H | DS | |
| serrulatus | L | fine-toothed;serrulate. (Alsoserrula.)[21] | Prunus serrulata | H | DS | C[175] |
| sesquipedalis | L | one-and-a-half-foot[7] | Angraecum sesquipedale | H | DS | C[115] |
| sessilis | L | sitting;[7]stalkless | Banksia sessilis | H | DS | |
| setiger | L | bristly;[7]setose | Papaver setigerum,Eremophila setacea,Polystichum setiferum,Corymbia setosa,Prunus setulosa | H | D | C[165] |
| setaceus | H | DS | C[20] | |||
| setifer | H | DS | C[176] | |||
| setosus | H | DS | C[177] | |||
| setulosus | H | DS | ||||
| sexangularis | L | hexagonal, fromsex, six[7] | Sedum sexangulare | H | DS | C[178] |
| siculiformis | L | dagger-shaped, fromsicula[7] | Acacia siculiformis | D | ||
| siderophloius | G | iron-barked | Eucalyptus siderophloia | D | ||
| signatus | L | marked up, fromsigno[7] | Acacia signata | H | D | |
| siliceus | L | sand, fromsilex, stone[7] | Carex silicea | H | DS | |
| silvicola | L | woodland, fromsilva.[7] Seesylv-, below. | Weinmannia silvicola,Persoonia silvatica,Eucalyptus silvestris | DS | ||
| silvaticus | H | DS | ||||
| silvestris | H | DS | ||||
| similis | L | similar;[7] generic | Melaleuca similis | H | DS | C[134] |
| simplex | L | simple;[7] unbranched. (Alsosimplicissimus, simplest.)[7][179] | Ruellia simplex | H | DS | C[124] |
| simulans | L | imitative[7] | Eremophila simulans | H | DS | |
| sinuatus | L | sinuous;[7]sinuate | Pterostylis sinuata | H | DS | C[42] |
| smaragdinus | L | emerald-green, fromsmaragdus, a green gem[7] | Epidendrum smaragdinum | DS | ||
| sobolifer | L | shoot-bearing;[7]basal-shoot-bearing | Stylidium soboliferum | H | DS | |
| socialis | L | confederated;[7] colony-forming | Ledebouria socialis | H | D | |
| solaris | L | solar[7] | Drosera solaris | D | ||
| solidus | L | dense[7] | Corydalis solida | H | DS | C[180] |
| solstitialis | L | summer-solstice[7] | Centaurea solstitialis | DS | ||
| somnifer | L | sedating[7] | Withania somnifera | H | D | C[166] |
| sordidus | L | dirty[7] (in appearance) | Salvia sordida | H | DS | |
| sororius | L | sisterly[7] | Viola sororia | D | C[123] | |
| spadiceus | L | dark brown[7] | Prasophyllum spadiceum | DS | ||
| sparsus | L | sparse, fromspargo, to scatter[7] | Beaufortia sparsa | DS | ||
| spathulatus | L | spatulate. (Alsospathaceus,spathed,[4][181] fromspatha, blade.)[7] | Sarcochilus spathulatus | H | DS | |
| speciosus | L | showy[7] | Banksia speciosa | H | DS | C[143] |
| spectabilis | L | remarkable[7] | Tahina spectabilis | H | D | C[182] |
| speculatus | L | mirrored, fromspeculum[7] | Rubus speculatus* | D | ||
| sphacelatus | G | withered | Setaria sphacelata | DS | ||
| sphaericus | G | spherical. (Alsosphaeroideus.)[6] | Corymbia sphaerica | H | D | |
| sphaeroides | D | |||||
| sphegodes | G | wasp | Ophrys sphegodes | D | ||
| sphenantherus | G | wedge-anthered | Schisandra sphenanthera* | D | ||
| spicifer | L | spike, fromspica;[7]spicate. (Alsospicatus.)[4][168] | Swintonia spicifera,Melaleuca spicigera,Micraira spiciforma* | DS | ||
| spiciger | H | D | C[112] | |||
| spiciformis | H | DS | ||||
| spinescens | L | spiny, fromspina;[7]spinose. (Alsospinulosus.)[4] | Acacia spinescens,Cenchrus spinifex,Prunus spinosa | H | DS | |
| spinifer | DS | |||||
| spinifex | H | D | ||||
| spinosus | H | DS | C[84] | |||
| spinulifer | D | |||||
| spinosissimus | L | spiniest | Mammillaria spinosissima | H | D | C[183] |
| spiralis | L | coiled or twisted, fromspira;[7]spiral | Thelymitra spiralis | H | DS | |
| spissus | L | crowded[7] | Pterostylis spissa | DS | ||
| splendidus | L | splendid[7] | Eremophila splendens,Boronia splendida | H | DS | C[64] |
| splendens | H | D | C[130] | |||
| spurius | L | spurious | Eremophila spuria | H | DS | C[178] |
| squalidus | L | squalid[7] | Senecio squalidus | H | DS | C[184] |
| squalens | D | |||||
| squamosus | L | scaly[7] | Pterostylis squamata,Eucalyptus squamosa | H | DS | C[185] |
| squamatus | H | DS | C[185] | |||
| squarrosus | L | with extended tips;squarrose. Cognate tosquamosus.[10] | Bromus squarrosus | H | DS | C[186] |
| stamineus | L | well-stamened, fromstamen, thread[7] | Trillium stamineum | H | DS | |
| stans | L | standing, fromsto[7] | Tecoma stans | H | DS | C[154] |
| stauracanthus | G | cross-spined | Cryosophila stauracantha* | D | ||
| stellaris | L | star, fromstella;[7]stellate. (Alsostellulatus.)[129] | Hibbertia stellaris,Allium stellatum | H | DS | |
| stellatus | H | DS | C[187] | |||
| stelliger | D | |||||
| stenocarpus | G | narrow-fruited | Hakea stenocarpa | H | D | |
| sterilis | L | infertile;[7]sterile | Bromus sterilis | H | DS | |
| stipulaceus | L | stipuled, fromstipula, stalk[7][10] | Dalbergia stipulacea,Palaquium stipulare,Rubus stipulatus | H | DS | |
| stipularis | H | DS | ||||
| stipulatus | H | D | ||||
| stolonifer | L | stolon-bearing;stoloniferous | Drosera stolonifera | H | D | C[112] |
| stramineus | L | straw;[7] straw-coloured | Parsonsia straminea | DS | ||
| strangulatus | L | constricted, fromstrangulo[7] | Trigonella strangulata* | DS | ||
| strepens | L | rattling, fromstrepo[7] | Ruellia strepens | D | ||
| streptophyllus | G | twisted-leaf | Tillandsia streptophylla | H | D | |
| striatus | L | striped;striate. (Alsostriatulus.)[175] | Bletilla striata,Dendrobium striolatum | H | DS | C[188] |
| striolatus | H | DS | ||||
| strictus | L | drawn tight;[7] upright | Orthoceras strictum | H | DS | C[87] |
| strigosus | L | meagre;[7]strigose | Caladenia strigosa | H | DS | |
| strigillosus | D | |||||
| strobilifer | L | cone-bearing | Deuterocohnia strobilifera | H | D | |
| strongylophyllus | G | rounded-leaf | Acacia strongylophylla | D | ||
| strumosus | L | swollen[7] | Hakea strumosa | H | DS | C[130] |
| strumarius | D | |||||
| stylosus | L | well-styled | Rhizophora stylosa | H | DS | C[135] |
| styracifluus | L | gummy | Liquidambar styraciflua | H | D | C[189] |
| suaveolens | L | sweet-scented | Brugmansia suaveolens | H | DS | C[23] |
| suavis | L | sweet[7] | Cymbidium suave | H | DS | |
| subacaulis | L | partly stemmed | Calystegia subacaulis | H | D | |
| subalpinus | L | subalpine, fromalpinus;[7] lower-mountain | Jacaranda subalpina | H | DS | |
| subauriculatus | L | partly eared, fromauricula, ear[7] | Pseuderanthemum subauriculatum | DS | ||
| subcaeruleus | L | light blue, fromcaeruleus, sky blue[7] | Acacia subcaerulea | DS | ||
| subcanus | L | partly grey, fromcanus[7] | Pavetta subcana* | DS | ||
| subcarnosus | L | partly fleshy | Aizoon subcarnosum* | D | ||
| subcordatus | L | almost heart-shaped | Alisma subcordatum | H | DS | C[190] |
| subdentatus | L | partly toothed, fromdentatus[7] | Epilobium subdentatum* | DS | ||
| subdivaricatus | L | partly spreading, fromdivarico[7] | Erica subdivaricata* | D | ||
| subelongatus | L | partly elongated, fromlongus[7] | Jasminum elongatum | DS | ||
| suberectus | L | angled, fromerectus[7] | Atriplex suberecta | DS | ||
| suberosus | L | partlyerose | Boronia suberosa | H | DS | |
| subfalcatus | L | almost sickle-shaped, fromfalcatus[7] | Lysiana subfalcata | DS | ||
| subglaucus | L | partlyglaucous, fromglaucus[7] | Juncus subglaucus* | DS | ||
| subhirtellus | L | slightly hairy, fromhirtus[7] | Drosera subhirtella | H | DS | C[21] |
| submersus | L | submerged, fromsubmergo[7] | Ceratophyllum submersum | H | DS | |
| subpetiolatus | L | partlypetiolate | Navia subpetiolata | D | ||
| subscandens | L | likely to climb, fromscando[7] | Siparuna subscandens* | DS | ||
| subterraneus | L | underground[7] | Trifolium subterraneum | H | DS | |
| subulatus | L | awl-shaped;subulate | Phlox subulata | H | DS | C[51] |
| subvillosus | L | partly shaggy, fromvillosus[7] | Allium subvillosum | H | DS | |
| succisus | L | severed below[7] | Robiquetia succisa | DS | ||
| succulentus | L | fleshy;succulent | Lupinus succulentus | H | DS | C[191] |
| suffrutescens | L | partly shrubby, fromfrutex, shrub[7] | Portulaca suffrutescens,Dillenia suffruticosa | H | DS | C[192] |
| suffruticosus | H | DS | C[166] | |||
| sulcatus | L | furrowed, fromsulcus;[7]sulcate | Persoonia sulcata | H | DS | C[155] |
| sulphureus | L | sulphur-yellow. Stearn also listssulfureus; (Alsosulphureas.)[6] | Pimelea sulphurea,Siphocampylus sulfureus | H | DS | C[105] |
| superbus | L | proud;[7] superb. (Alsosuperbiens.)[4] | Calothamnus superbus | H | D | C[51] |
| superciliaris | L | eyebrow, fromsupercilium[7] | Begonia superciliaris* | D | ||
| supinus | L | supine[7] | Asperula supina* | H | DS | |
| supranubius | L | above the clouds, fromnubes, cloud[7] | Genista supranubia* | D | ||
| surculosus | L | shoot-bearing, fromsurculus, a shoot[7] | Mammillaria surculosa | H | DS | |
| suspensus | L | suspended[7] | Forsythia suspensa | H | DS | C[193] |
| sylvaticus | L | woodland, fromsylva.[7] Seesilv-, above. | Nyssa sylvatica,Angelica sylvestris,Caladenia sylvicola,Aruncus sylvester | H | DS | C[194] |
| sylvester | H | D | ||||
| sylvestris | H | DS | C[91] | |||
| sylvicola | H | DS | ||||
| tabuliformis | L | flat, fromtabula, board[7] | Aeonium tabuliforme | H | DS | C[79] |
| taediger | L | torch-bearing, fromtaeda, torch.[7] (Alsotaeda.)[195] | Raphia taedigera | D | ||
| tanastylus | G | long-styled | Rhododendron tanastylum* | D | ||
| tapetiformis | L | woven (like tapestry or carpet), fromtapes[7] | Rhododendron tapetiforme* | D | ||
| tardus | L | tardy;[7] late. | Tulipa tarda,Allium tardiflorum | H | DS | |
| tardivus | D | |||||
| tectorum | L | of roofs, fromtectum[7] | Sempervivum tectorum | H | DS | C[196] |
| tectus | L | covered[7] | Genoplesium tectum | DS | ||
| telmateius | G | of soggy ground | Equisetum telmateia | DS | ||
| temenius | G | of sacred places | Rhododendron temenium* | D | ||
| temulentus | L | drunk[7] | Lolium temulentum | H | DS | |
| temulus | D | |||||
| tenax | L | tenacious[7] | Sideroxylon tenax | H | DS | C[135] |
| tenebrosus | L | gloomy | Cattleya tenebrosa* | H | DS | |
| tenellulus | L | tender;[7] delicate | Felicia tenella | D | ||
| tenellus | H | DS | C[197] | |||
| tener | L | delicate[7] | Sticherus tener | H | ||
| tentaculatus | L | tentacled | Caladenia tentaculata | H | ||
| tenuis | L | thin.[7] (Alsotenuissimus, thinnest.)[4][107] | Cystopteris tenuis | H | DS | C[198] |
| teres | L | rounded or circular;[7]terete | Dampiera teres | H | DS | |
| terminalis | L | at the end, fromterminus;[7]terminal | Persoonia terminalis | H | DS | C[72] |
| ternatus | L | triple, fromternus;[7]ternate | Sedum ternatum | H | DS | C[199] |
| terrestris | L | ground-dwelling;[7]terrestrial | Lysimachia terrestris | H | DS | |
| tessellatus | L | tessellated, fromtessella, a small cube[7] | Thamnocalamus tessellatus | H | DS | C[200] |
| testaceus | L | brick-coloured, fromtesta, brick[7] | Caladenia testacea | H | DS | C[201] |
| testicularis | L | testicular, fromtesticulus[7] | Aglaia testicularis* | H | D | |
| testiculatus | DS | |||||
| testudo | L | tortoise[7] | Durio testudinarius | D | ||
| testudinarius | H | D | ||||
| tetracanthus | G | four-spined | Barleria tetracantha | D | ||
| tetragonus | G | four-angled;tetragonal | Dendrobium tetragonum | H | DS | C[85] |
| tetrandrus | G | four-anthered | Myoporum tetrandrum | H | DS | |
| tetranthus | G | four-flowered | Lactuca tetrantha | D | ||
| tetraphyllus | G | with four leaves | Polycarpon tetraphyllum | H | D | |
| tetrapterus | G | four-winged | Eucalyptus tetraptera | H | DS | C[29] |
| textilis | L | woven[7] | Juncus textilis | H | DS | |
| thermalis | L | warm springs, fromthermae[7] | Azima tetracantha | DS | ||
| thurifer | L | incense-bearing[7] | Anisoptera thurifera | D | ||
| thyrsiflorus | L | thyrse-flowered, fromthyrsus, stalk or vined staff.[7] (Alsothyrsoideus andthyrsoides.)[4] | Ceanothus thyrsiflorus | H | DS | C[17] |
| tigrinus | L | striped; spotted. Fromtigris, tiger.[7] | Cymbidium tigrinum | H | DS | |
| tinctorum | L | of dyers, fromtinctus, dyed[7] | Indigofera tinctoria | DS | ||
| tinctorius | H | DS | C[94] | |||
| tinctus | L | dyed[7] | Fuchsia tincta* | DS | ||
| tingens | L | tingeing, fromtingo[7] | Marsdenia tingens* | DS | ||
| titanius | G | titanic. (Alsotitanus.)[4] | Amorphophallus titanum | D | ||
| tomentosus | L | matted, fromtomentum, cushion-filling;[7]tomentose | Alectryon tomentosus | H | DS | C[78] |
| tonsus | L | shaved[7] | Dischidia tonsa* | DS | ||
| torminalis | L | (for)colic, fromtormina[7] | Sorbus torminalis | D | C[29] | |
| torosus | L | muscular;[7] cylindrical with constrictions | Mandevilla torosa | DS | ||
| torridus | L | parched[7] | Coccothrinax torrida | DS | ||
| tortilis | L | twisted.[7] (Alsotortuosus.)[83] | Prasophyllum tortilis,Corymbia torta | H | DS | |
| tortus | H | DS | ||||
| toxicarius | L | toxic, fromtoxicum, poison[7] | Antiaris toxicaria | H | DS | |
| toxicus | D | |||||
| toxifer | D | |||||
| trachyspermus | G | rough-seeded | Kewa trachysperma* | H | S | |
| transitorius | L | short-lived, originally fromtranseo, to pass through briefly[7] | Caladenia transitoria | H | S | |
| translucens | L | translucent, fromtransluceo[7] | Acacia translucens | DS | ||
| transparens | L | transparent, fromtrans[7] +pareo[7] | Pteris transparens* | D | ||
| trapeziformis | L | irregularly four-sided;trapeziform | Chiloglottis trapeziformis | H | DS | |
| tremulus | L | shaking.[7] (Alsotremuloides.)[44] | Pteris tremula | H | DS | C[44] |
| triacanthus | L | three-spined. (Alsotriacanthos.)[4] | Opuntia triacantha | D | ||
| triandrus | G | three-anthered | Salix triandra | H | DS | |
| triangularis | L | triangular, fromtriangulus[7] | Prasophyllum triangulare | H | DS | C[202] |
| triangulatus | H | D | ||||
| tricaudatus | L | three-tailed | Aristolochia tricaudata | D | ||
| tricephalus | L | three-headed | Coussarea tricephala* | D | ||
| trichophorus | G | hairy | Triglochin trichophora | D | ||
| trichotomus | G | three-branched | Clerodendrum trichotomum | H | D | C[203] |
| tricoccus | G | three-lobed | Allium tricoccum | DS | ||
| tricolor | L | three-coloured, fromcolor[7] | Viola tricolor | H | DS | C[37] |
| tricornis | L | three-horned | Delphinium tricorne | DS | ||
| tricuspidatus | L | three-pointed, fromtricuspis[7] | Parthenocissus tricuspidata | H | DS | C[151] |
| tridens | L | three-toothed[7] | Larrea tridentata | D | ||
| tridentalus | DS | C[204] | ||||
| trifidus | L | split into three;[7]trifid | Galium trifidum | H | DS | C[201] |
| triflorus | L | three-flowered | Geum triflorum | H | D | C[205] |
| trifolius | L | with three leaflets;trifoliate | Coptis trifolia | H | D | C[206] |
| trifoliatus | H | D | C[116] | |||
| trifurcatus | L | three-forked, fromfurca[7] | Hakea trifurcata | H | DS | |
| trifurcus | DS | |||||
| trigonophyllus | G | with triangular leaves | Acacia trigonophylla | H | D | |
| trilobatus | L | three-lobed | Malus trilobata | H | DS | C[207] |
| trimestris | L | three-month, frommensis, month[7] | Lavatera trimestris | H | DS | |
| trinervis | L | with three nerves (veins), originally fromnervus[7] | Conothamnus trinervis | H | DS | |
| trinotatus | L | triple-marked | Palmorchis trinotata* | D | ||
| tripetalus | G | three-petaled | Magnolia tripetala | H | DS | C[187] |
| triphyllus | G | three-leaved | Gladiolus triphyllus | H | D | C[78] |
| tripterus | G | three-winged. (Alsotripteris.)[4] | Acacia triptera | H | D | C[163] |
| trispermus | G | three-seeded | Reutealis trisperma | DS | ||
| tristachyus | G | three-spiked | Diphasiastrum tristachyum | D | ||
| tristis | L | sad;[7] dull | Pterostylis tristis | H | DS | C[208] |
| triternatus | L | with three groups of leaflets in threes, fromternus, triple[7] | Lomatium triternatum | H | DS | C[154] |
| trivialis | L | common[7] | Alisma triviale | H | DS | C[190] |
| tropicus | G | tropical | Acacia tropica | DS | ||
| truncatus | L | truncated, fromtruncus, dismembered or deprived of branches;[7]truncate | Lupinus truncatus,Telopea truncata | H | DS | C[168] |
| tubatus | L | trumpet, fromtuba[7] | Oxypetalum tubatum* | DS | ||
| tubaeformis | DS | |||||
| tuberculatus | L | bumpy;tuberculate | Diospyros tuberculata,Eleocharis tuberculosa | H | DS | |
| tuberculosus | H | D | ||||
| tuberosus | L | swollen, fromtuber, a swelling;[7]tuberous | Thysanotus tuberosus | H | DS | C[96] |
| tubulosus | L | tubular | Leichhardtia tubulosa | H | DS | C[154] |
| tubifer | H | D | ||||
| tuguriorum | L | of hut-dwellers, fromtugurium, hut[7] | Calystegia tuguriorum | D | ||
| tumidus | L | tumid[7] | Verticordia tumida | DS | ||
| turbinatus | L | shaped like a top, fromturbineus;[7]turbinate | Stylidium turbinatum | H | DS | |
| turgidus | L | swollen;[7]turgid | Panicum turgidum | DS | ||
| typicus | G | typical | Arthraxon typicus* | DS | ||
| tytthocarpus | G | small-fruited | Cotoneaster tytthocarpus* | DS | ||
| uliginosus | L | of marshes; fromuligo, dampness[7] | Salvia uliginosa | H | DS | C[209] |
| umbellatus | L | umbelled, fromumbella, umbrella[7] | Ornithogalum umbellatum | H | DS | C[210] |
| umbonatus | L | with a central knob, fromumbo, knob;[7]umbonate | Corymbia umbonata | DS | ||
| umbraculifer | L | sunshade-bearing, fromumbraculum,sunshade[7] | Corypha umbraculifera | DS | ||
| umbrella | L | umbrella, fromumbra, shade[7] | Soroseris umbrella* | DS | ||
| umbrosus | L | shady;[7] shade-tolerant | Scrophularia umbrosa | H | DS | C[112] |
| uncinatus | L | hooked;[7]uncinate | Hemiphora uncinata,Chamelaucium uncinatum | H | DS | C[211] |
| undulatus | L | wavy, fromunda;[7]undulate | Nerine undulata | H | DS | C[79] |
| undatus | H | DS | ||||
| unguiculatus | L | clawed, fromunguis[7] | Bulbophyllum unguiculatum | H | DS | C[39] |
| unguicularis | H | DS | ||||
| uniflorus | L | one-flowered | Monotropa uniflora,Ipheion uniflorum | H | D | C[88] |
| urbanus | L | town.[7] (Alsourbius.)[4] | Geum urbanum | H | DS | C[162] |
| urbicus | H | D | ||||
| urceolatus | L | flask, fromurceolus;[7]urceolate | Gastrodia urceolata | H | DS | C[98] |
| urens | L | burning, fromuro[7] | Caryota urens | H | DS | |
| urniger | L | urn, fromurna[7] | Pogonatum urnigerum | DS | ||
| ursinus | L | bear, fromursus[7] | Allium ursinum | H | D | C[96] |
| usitatissimus | L | most useful, fromusitatus[7] | Linum usitatissimum | DS | C[126] | |
| ustulatus | L | (apparently) scorched, fromuro | Neotinea ustulata | D | ||
| utilis | L | useful[7] | Brosimum utile | H | DS | C[143] |
| utriculatus | L | bladder-like; withutricles | Tillandsia utriculata | H | DS | |
| utriculosus | DS | |||||
| vacillans | L | variable, fromvacillo[7] | Vaccinium vacillans | DS | ||
| vagans | L | widely distributed; wandering. Fromvagor, to wander.[7] | Erica vagans | H | DS | C[212] |
| vaginatus | L | sheathed[7] | Cyperus vaginatus | H | DS | |
| vaginalis | H | DS | ||||
| vaginifer | D | |||||
| validus | L | strong;[7] well-developed | Yucca valida | DS | ||
| vallicola | L | valley-dweller[7] | Carex vallicola | D | ||
| variabilis | L | variable, fromvario[7] | Pseuderanthemum variabile | H | DS | C[139] |
| varians | H | DS | ||||
| variatus | H | D | ||||
| varicosus | L | with enlarged veins or vessels | Oncidium varicosum | H | S | |
| variegatus | L | variegated | Codiaeum variegatum | H | DS | C[175] |
| varius | L | diverse[7] | Hakea varia | H | DS | |
| vegetus | L | vigorous[7] | Astragalus vegetus* | H | DS | |
| vellereus | L | fleecy, fromvellus, fleece[7] | Ballota vellerea* | DS | ||
| velox | L | quick;[7] quick-growing | Rubus velox | D | ||
| velutinus | L | velvety, from French and Latin | Myoporum velutinum | H | DS | C[17] |
| venator | L | hunter[7] | Rhododendron venator* | D | ||
| venenatus | L | poisonous, fromvenenum[7] | Alstonia venenata | DS | ||
| venenosus | L | very poisonous | Toxicoscordion venenosum | H | DS | |
| venosus | L | heavily veined, fromvena[7] | Haworthiopsis venosa | H | DS | |
| ventricosus | L | ventricose (swollen, often on one side), fromventer, belly[7] | Ensete ventricosum | H | DS | |
| venustus | L | pretty[7] | Calochortus venustus | H | DS | C[124] |
| verecundus | L | shy[7] | Boronia verecunda | H | D | |
| vermiculatus | L | wormlike; having waving lines[7] | Caroxylon vermiculatum | D | ||
| vermicularis | DS | |||||
| vernicosus | L | varnished | Eucalyptus vernicosa | H | DS | C[108] |
| vernix | L | varnish. (Alsovernicifluus.)[4] | Acacia verniciflua | D | ||
| vernus | L | of spring[7] | Ficaria verna,Leucojum vernum | H | DS | C[213] |
| vernalis | H | DS | ||||
| verrucosus | L | warty, fromverruca;[7]verrucose | Sesuvium verrucosum,Berberis verruculosa | H | DS | |
| verruculosus | H | DS | C[214] | |||
| versicolor | L | variably coloured[7] | Iris versicolor | H | DS | C[23] |
| verticillatus | L | whorled, fromvertex, a whorl;[7]verticillate | Banksia verticillata | H | DS | C[118] |
| verticillaris | D | |||||
| verus | L | true[7] | Aloe vera | H | DS | C[175] |
| vescus | L | small;[7][193] feeble;[4][7] edible | Fragaria vesca | H | D | |
| vesicarius | L | bladder, fromvesica[7] | Carex vesicaria | H | DS | C[139] |
| vesiculosus | L | vesicle, fromvesicula,[7] seed vesicle | Aldrovanda vesiculosa | H | DS | |
| vespertilionis | L | (wings) of a bat | Christia vespertilionis* | D | ||
| vespertinus | L | (flowering) in the evening[7] | Asplenium vespertinum | H | DS | |
| vestitus | L | covered[7] | Leucospermum vestitum | H | DS | |
| vexans | L | troublesome, fromvexo[7] | Buddleja vexans | H | D | |
| vexillaris | L | with a flag, fromvexillum[7] | Pachycarpus vexillaris* | DS | ||
| viarum | L | by the side of the road or path, fromvia.[7] (Alsovialis.)[4] | Solanum viarum | DS | ||
| victorialis | L | victorious, fromvictoria[7] | Allium victorialis | D | ||
| vigilis | L | vigilant, fromvigilo[7] | Diascia vigilis | H | ||
| villosus | L | hairy;[7]villous | Vicia villosa | H | DS | C[93] |
| vinealis | L | vineyard, fromvinea[7] | Allium vineale | D | ||
| vinifer | L | yielding wine, fromvinum[7] | Vitis vinifera | H | D | |
| vinosus | L | wine-red | Schefflera vinosa | DS | ||
| violaceus | L | violet-coloured, fromviola, a violet[7] | Banksia violacea | H | DS | C[215] |
| violascens | L | light violet. (Alsoviolescens.)[4] | Pitcairnia violascens | D | ||
| virens | L | green[7] | Rhus virens | H | DS | |
| viridis | L | fresh-green[7][10] | Veratrum viride | H | DS | C[175] |
| viridescens | L | light green | Ferocactus viridescens,Nassella viridula | H | DS | |
| viridulus | H | DS | ||||
| viridissimus | L | greenest | Forsythia viridissima | H | D | C[193] |
| virgatus | L | twiggy[7] | Homoranthus virgatus,Panicum virgatum | H | DS | C[157] |
| virginalis | L | virginal;[7] white. (Alsovirgineus.)[4] | Disa virginalis | H | D | |
| virgultorum | L | hedge, fromvirgulta[7] | Solanum virgultorum* | D | ||
| viscidus | L | sticky;viscid | Phacelia viscida | H | DS | |
| viscosus | L | sticky | Dittrichia viscosa | H | DS | C[216] |
| vitaceus | L | vine, fromvitis.[7] (Alsoviticella.)[4] | Piper vitaceum* | H | DS | |
| vitellinus | L | yolk-coloured, fromvitellus[7] | Xanthophyllum vitellinum | H | DS | |
| vittatus | L | striped, fromvitta, a (worn) band[7] | Hakea vittata | H | DS | |
| vittiger | D | |||||
| vivax | L | long-lived[7] | Phyllostachys vivax | H | ||
| viviparus | L | viviparous | Bistorta vivipara | H | S | |
| volubilis | L | circling around[7] | Comesperma volubile | H | DS | |
| volutus | L | with rolled leaves, fromvoluto[7] | Epidendrum volutum* | DS | ||
| vomitorius | L | causing vomiting, fromvomo[7] | Ilex vomitoria | H | D | C[125] |
| vulcanicus | L | of volcanos | Peperomia vulcanica | DS | ||
| vulgaris | L | common[7] | Marrubium vulgare | H | DS | C[217] |
| vulpinus | L | of foxes, fromvulpes[7] | Vitis vulpina | D | ||
| xanthinus | G | yellow | Acacia xanthina | H | D | C[183] |
| xylonacanthus | G | woody-spined | Agave xylonacantha | D | ||
| zaleucus | G | very white | Rhododendron zaleucum* | D | ||
| zebrinus | L | zebra-striped, from Portuguese andNeo-Latin | Tradescantia zebrina | H | DS | |
| zibethinus | L | (stinking) like acivet | Durio zibethinus | H | D | |
| zonatus | L | banded, fromzona, belt;[7]zonate | Cryptanthus zonatus | H | DS | |
| zonalis | H | D |