Family Code: LYTHRA Genus Code: AMMAN Genus CN: redstem Genus Authority: L. Genus Summary: A genus of about 80 species, herbs, cosmopolitan. The circumscription of the genus here includes Nesaea and Hionanthera, following Graham, Diazgranados, & Barber (2011) and Graham (2007). Genus References: Graham (1985)=Y; Graham (1975)=Z; Graham in Kubitzki, Bayer, & Stevens (2007). Key based in part on Y. Last Updated: 2019-11-29 Publish: 1