Senna alexandrina Mill.

Herbs or shrubs, 0.5-2 m high; branchlets sparsely appressed pubescent. Leaves alternate, rachis (including petiole) 4-9 cm long, pubescent, eglandular; gland-like finger-shaped bodies present between the pairs of leaflets; leaflets 4-8 pairs, 1-4 x 0.3-0.9 cm, elliptic-lanceolate, acute, appressed pubescent; stipules 1.5-2 mm long, linear-lanceolate, acute, appressed pubescent; stipules 1.5-2 mm long, linear-subulate or somewhat ovate. Racemes 10-22 cm long, axillary and terminal, longer than leaves; pedicels up to 10 mm long, thickened upwards, pubescent, deflexed in fruit. bracts ca 1 cm long, boat-shaped, acute, glabrous. Sepals 7-9 mm long, obtuse, glabrous. Petals yellow, 1-1.5 cm long. Fertile stamens 7; of which 2 anthers ca 1 cm long and falcate, one ca 4.5 mm long and straight, four 3-4 mm long and staright; staminodes 3. Ovary strigose; stigma punctiform. Pods 4-5.2 x 2 cm, oblong, straight or upwardly slightly falcate, flat, shallowly elevated over the seeds, transversely septate, sparsely appressed pubescent, reticulately veined, dehiscent; seeds 5-8, each 5-6 x 3 mm, obovate-oblong, narrowed at hilum end, testa reticulately worted or rugose; areole ca 2.5 mm long, more towards hilum end, on both faces.