Family Code: GELSEM Genus Code: GELSE Genus CN: trumpetflower Genus Authority: Juss. Genus Summary: A genus of 3 species, vines, our 2 species in se. North America (and also Central America) and 1 species in e. Asia. See Wyatt et al. (1993) and Duncan & Dejong (1964) for extensive discussions of morphology, habitat, pollination, genetics, distribution, and evolutionary relationships of our two species of Gelsemium. Genus References: Krings in FNA (in prep.); Wyatt et al. (1993); Duncan & Dejong (1964); Godfrey (1988); Rogers (1986)=Z; GW. Last Updated: 2019-11-29 Publish: 1