Tetramerium
| Tetramerium | |
|---|---|
| Tetramerium nervosum | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Lamiales |
| Family: | Acanthaceae |
| Subfamily: | Acanthoideae |
| Tribe: | Justicieae |
| Genus: | Tetramerium Nees (1846) |
| Species | |
|
30; see text | |
| Synonyms | |
|
Averia Leonard (1940) | |
Tetramerium is a genus of plants belonging to the family Acanthaceae. It is found in the Americas, ranging from the southwestern United States to Bolivia, especially in tropical dry forests. Christian Gottfried Daniel Nees von Esenbeck first described the genus in 1846 after collecting two species (T. polystachyum and T. nervosum) on the journey of HMS Sulphur.