found: Plants database, via WWW, Oct. 6, 2008(Senna, vernacular name: senna. Family: Fabaceae)
found: GRIN taxonomy, via WWW, Oct. 6, 2008(Genus Senna. Family: Fabaceae, subfamily Caesalpinioideae, tribe Cassieae, subtribe Cassiinae. Altfamily: Leguminosae. Also sometimes placed in: Caesalpiniaceae)
found: Wikipedia, Oct. 6, 2008(Senna (genus). Senna, the sennas, is a large genus of around 250 species of flowering plants in the family Fabaceae, subfamily Caesalpinioideae. Almost all species were at one time or another placed in Cassia, a close relative)