Senna Mill.

Suffruticose perennial, up to 90 cm tall. Branches glabrous to subglabrous. Stipules lateral, c. 1.5 mm long, acute. Leaf paripinnate, c. 4.5-11.5 cm long. Leaflets 5-9 pairs, petiolule c. 1 mm long, lamina c. 1.2-4 cm long, c 3.5-10 mm wide, glabrous to sparingly hairy on both sides, lanceolate to ovate, tip acute. Inflorescence termical or axillary raceme, up to 15 cm long. Young flowers covered with c. 7-8 mm long cup-shaped bracts. Pedicel 3-4 cm long. Sepals 5, subequal, 10-13 mm long, c. 6-8 mm broad, spoon shaped or cup shaped, light yellow in colour. Petals 5, subequal, 14-17 mm long, 7-10 mm wide, obovate, shortly claw¬ed, deep yellow, veins becoming prominent after drying. Stamens 10, upper 3 reduced to staminodes, rest perfect, 2 lower largest. Ovary densely hairy, stipitate. Fruit c. 4-5 cm long, c. 16-22 mm broad, sparsely hairy, turning black at maturity, generally 4-10 seeded; stipe 2-3 mm.

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 4
Species With Barcodes: 1

Barcode of Life Data Systems (BOLD) Stats
Specimen Records:444
Specimens with Sequences:501
Specimens with Barcodes:459
Species:125
Species With Barcodes:120
Public Records:246
Public Species:109
Public BINs:0

Perennial, Shrubs, Woody throughout, Stems woody below, or from woody crown or caudex, Stems erect or ascending, Stems or branches arching, spreading or decumbent, Stems less than 1 m tall, Stems 1-2 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 deciduous, Leaves compound, Leaves even pinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets 5-9, Leaflets 10-many, Leaves glabrous or nearly so, Leaves coriaceous, Flowers in axillary clusters or few-floweredracemes, 2-6 flowers, Inflorescences racemes, Inflorescence axillary, Bracts very small, absent or caducous, Flowers act inomorphic or somewhat irregular, Calyx 5-lobed, Calyx glabrous, Petals separate, Petals orange or yellow, Stamens 9-10, Stamens heteromorphic, graded in size, Stamens completely free, separate, Filaments glabrous, Anthers opening by basal or terminal pores or slits, Style terete, Fruit a legume, Fruit stipitate, Fruit unilocular, Fruit freely dehiscent, Fruit tardily or weakly dehiscent, Fruit elongate, straight, Fruit oblong or ellipsoidal, Fruit strongly curved, falcate, bent, or lunate, Fruit exserted from calyx, Fruit compressed between seeds, Fruit glabrous or glabrate, Fruit 11-many seeded, Seed with elliptical line or depression, pleurogram, Seeds ovoid to rounded in outline, Seed surface smooth, Seeds olive, brown, or black.