Family Code: ARISTO Genus Code: ISOTR2 Genus CN: Dutchman's-pipe Genus Summary: A genus of about 50 species, of temperate and tropical Asia, se. North America, and Central America. Genus Identification: Genus References: Barringer in FNA (1997); Ohi-Toma et al. (2006); Kelly & Gonzalez (2003); Huber in Kubitzki, Rohwer, & Bittrich (1993). Last Updated: 2019-12-01 Publish: 1