| Lipandra | |
|---|---|
 | |
| Manyseed goosefoot (Lipandra polysperma) | |
Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Amaranthaceae |
| Subfamily: | Chenopodioideae |
| Tribe: | Atripliceae |
| Genus: | Lipandra Moq. |
| Species: | L. polysperma |
| Binomial name | |
| Lipandra polysperma | |
| Synonyms | |
| |
Lipandra polysperma (Syn.Chenopodium polyspermum), common namemanyseed goosefoot,[1] is the only species of themonotypic plantgenusLipandra from the subfamilyChenopodioideae of the familyAmaranthaceae.
Many-seeded goosefoot is a non-aromatic, glabrousannual herb, which can grow up to 1 m tall, although often has a sprawling habit. The stem is square in cross-section and can be green or bright red. The leaves (and subsequently branches) are alternate but sometimes nearly opposite at the base. it has no stipules. The petioles are up to 2.5 cm long, and the leaves are ovate-elliptic, 3-5 cm long, and usually have untoothed margins.[2][3]
Theinflorescences consist of loose dichasia in the axils of leaf-like bracts, sometimes of more condensed glomerules of flowers arranged spicately. The flowers arebisexual orpistillate, with (4-) 5 nearly freeperianth segments,1-3 (-5)stamens and an ovary with 2stigmas.
In fruit, perianth segments remain unchanged. The fruit has a membranouspericarp, which is free from the seed. The horizontally orientated seeds are compressed-globose. The brown to blackish seed coat is undulately striate.[4]
Lipandra polysperma is distributed in most regions ofEurope and in temperateAsia.[5] It is widely naturalized elsewhere, as inNorth America.[6]
The species was first described in 1753 byCarl Linnaeus asChenopodium polyspermum inSpecies Plantarum.[7] Afterphylogenetic research, Fuentes-Bazan et al. (2012) separated this species from genusChenopodium that would otherwise have beenpolyphyletic. The genusLipandra was first described byAlfred Moquin-Tandon in 1840 (inChenopodearum monographica enumeratio, p. 19.), replacing an older illegitimate name:Christian Friedrich Lessing's genusOligandra (1835, not the Asteraceae genusOligandra from 1832) had only one species,Oligandra atriplicoides, that was soon considered identical withChenopodium polyspermum.[4]
Lipandra polysperma belongs to the same tribe asChenopodium, TribusAtripliceae.[4]
Synonyms of genusLipandra Moq.:[4]
