Senna nitida (Rich.) H. S. Irwin & Barneby

Chamaefistula antillana Britton & Rose; Britton & Wilson, Sci Surv. Porto Rico and Virgin Isl. 5: 369. 1924.
Caiiio ?Hi«3MaHg«;o/o Urban, Symb. Ant. 4: 272. 1905. Not L. C. Rich. 1792.
A vine, 8 m. long or more, the young twigs and inflorescence appressed-puljcriilcnt or gl;ibralc, the branches 5-angled. Leaves 1-2 dm. long; leaflets obliquely ovate, 3-10 cm. long, chartaccous, acute or acuminate at the apex, mostly obtuse at the base, shining above, glabrous on both sides or somewhat pubescent beneath, with a slender gland between each pair; panicles scveral-many-flowered; pedicels slender, 2 cm. long or less; sepals oblong or ovate, obtuse, puberulent, 4—6 mm. long; petals bright yellow, orbicular-ovate, veiny, 1-2 cm. long; legume linear, turgid when mature, glabrous, 8-18 cm. long, 1-1.5 cm. thick.
Type locality: St. Thomas.
Distribution: Hispaniola; Porto Rico; St. Thomas; Tortola.

Perennial, Shrubs, Vines, twining, climbing, Woody throughout, Stems woody below, or from woody crown or caudex, Stems erect or ascending, Stems or branches arching, spreading or decumbent, Stems 1-2 m tall, Stems greater than 2 m tall, Stems solid, Stems or young twigs sparsely to densely hairy, Leaves alternate, Leaves petiolate, Extrafloral nectary glands on petiole, Stipules inconspicuous, absent, or caducous, Stipules setiform, subulate or acicular, Stipules deciduous, Stipules free, Leaves compound, Leaves even pinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets 4, Leaves glabrous or nearly so, Inflorescences racemes, Inflorescence axillary, Bracts very small, absent or caducous, Flowers actinomorphic or somewhat irregular, Flowers zygomorphic, Calyx 5-lobed, Calyx hairy, Petals separate, Petals orange or yellow, Fertile stamens 6-8, Stamens heteromorphic, graded in size, Stamens completely free, separate, Filaments glabrou s, Anthers opening by basal or terminal pores or slits, Style terete, Fruit a legume, Fruit stipitate, Fruit unilocular, Fruit freely dehiscent, Fruit elongate, straight, Fruit oblong or ellipsoidal, Fruit exserted from calyx, Fruit inflated or turgid, Fruit compressed between seeds, Fruit glabrous or glabrate, Fruit 11-many seeded, Seeds embedded in gummy or spongy pulp, Seed with elliptical line or depression, pleurogram, Seeds ovoid to rounded in outline, Seed surface smooth, Seeds olive, brown, or black.

Senna nitida là một loài thực vật có hoa trong họ Đậu. Loài này được (Rich.) H.S.Irwin & Barneby miêu tả khoa học đầu tiên.