Senna silvestris (Vell.) H.S.Irwin & Barneby subsp. silvestris

Authors

Howard S. Irwin, Rupert C. Barneby

Authority

Irwin, Howard S. & Barneby, Rupert C. 1982. The American Cassiinae. A synoptical revision of Leguminosae tribe Cassieae subtrib Cassiinae in the New World. Mem. New York Bot. Gard. 35, part 1: 1-454.

Family

Caesalpiniaceae

Scientific Name

Senna silvestris (Vell.) H.S.Irwin & Barneby subsp. silvestris

Description

Subspecies Description - Venulation of lfts variable in strength and prominence but the dorsal face not alveolate-reticulate, even the smallest areoles plane and shallow; pubescence of foliage usually sparse (-0), the hairs straight or almost so, the lfts glabrous above; valves of pod always chartaceous and delicately transverse-venulose.

Relationships and variation - Our subsp, silvestris embraces Cassia racemosa of Bentham (C. lucens of recent authors), C. sapindifolia and C. guaranitica, collectively different from subsp, bifaria in venulation and vesture of the leaflets and from subsp, bifaria except its var. velutina in the thinner-textured pod.