Flora of the Southeastern United States
2022 Edition


Data mode


Sign up


Isotrema Rafinesque. Dutchman's-pipe.

Key to Isotrema

A genus of about 90-100 species, of temperate and tropical Asia, se. North America, and Central America. Zhu et al. (2019) argue for the recognition of Isotrema at generic rank, but include Endodeca in it; we prefer to separate Endodeca (basal to Isotrema s.s.).

Ref: Barringer (1997) In Flora of North America Editorial Committee (1997); Huber In Kubitzki, Rohwer, & Bittrich (1993); Kelly & González (2003); Ohi-Toma et al. (2006); Zhu et al. (2019). Show full citations.

Show in key(s)

Show parent

Show children

Your browser does not support SVGs

Hover over a shape, letter, icon, or arrow on the map to see what it means. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image of plant© Alan M. Cressler
image of plant© Richard & Teresa Ware
image of plant© Edwin Bridges
image of plant© Alan Cressler: Isotrema tomentosum, Paint Rock River, Jackson County, Alabama 1 by Alan Cressler source