| Loasaceae | |
|---|---|
| Loasa vulcanica | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Cornales |
| Family: | Loasaceae Juss.[1] |
| Type genus | |
| Loasa Adans. | |
| Genera | |
See text | |

Loasaceae is afamily of 15–20 genera and about 200–260 species offlowering plants in the orderCornales, native to theAmericas andAfrica. Members of the family includeannual,biennial andperennialherbaceous plants, and a fewshrubs and smalltrees. Members of thesubfamily Loasoideae are known to exhibit rapidthigmonastic stamen movement when pollinators are present.[2]
In the classification system ofDahlgren the Loasaceae were placed in the order Loasales in thesuperorder Loasiflorae (also called Loasanae). TheAngiosperm Phylogeny Group system places them in the related orderCornales in theasteridclade.[3]
21 genera are accepted:[4]