Senna nicaraguensis (Benth.) H. S. Irwin & Barneby

Chamaesenna nicaraguensis (Benth.) Britton & Rose
Cassia nicaraguensis Benth. Trans. Linn. Soc. 27: 552. 1871. Cassia Seleriana Harms, Bull. Herb. Boiss. 7: 551. 1899.
A shrub, or a small tree, 4 or 5 m. high, glabrous throughout. Stipules deciduous; (ex Bentham) "reniform-falcate, sometimes 2.5 cm. long, long-acuminate"; leaflets 5-20 pairs, oblong to lanceolate, acute or obtuse, subchartaceous, 4-8 cm. long, 1.3-2.5 cm. wide, delicately pinnately and reticulate-veined; flowers racemose in the upper axils; pedicels 1-2 cm. long; bracts oblong to obovate, 1-1.5 cm. long, caducous; sepals elliptic, rounded, venose, 1-1.5 cm. long; petals elegantly veined, a little longer than the sepals; legume broadly linear, margined, apiculate, shining, 7-12 cm. long, 10-16 mm. wide, transversely veined, the short seeds distinctly elevated.
Type locality: Nicaragua.
Distribution: Michoacan and Chiapas to Guatemala and Panama.