A genus of about 41 species, shrubs, herbs, and small trees, of tropical and warm temperate regions of the New World. See Paula-Souza & Ballard (2014) for detailed information on this genus.
Ref: Ballard (in prep.); Ballard, Burwell, & Lockhart (2020) In Weakley et al. (2020); Ballard, Paula-Souza, & Wahlert In Kubitzki (2014); Little (2015) In Flora of North America Editorial Committee (2015); Paula-Souza & Ballard (2014); Wahlert et al. (2014); Wofford et al. (2004). Show full citations.