Crotalaria cylindrocarpa Dc.

Perennial, generally with several stems ascending or spreading from a well-developed rootstock, up to 6 dm. tall, though sometimes much smaller.. Stem finely ribbed, pubescent with closely appressed or (especially in East Africa) mostly slightly spreading hairs.. Leaves 3-foliolate; leaflets variable, oblanceolate-oblong to elliptic, rhombic or obovate-oblong, up to 20–70 mm. long, 8–23 mm. wide, glabrous above, thinly appressed pubescent to subglabrous beneath; petiole up to 15–35 mm. long.. Stipules obliquely linear-lanceolate to falcate, 7–14 mm. long, 1·5–4 mm. wide, acuminate, markedly unequal-sided.. Racemes 3·5–23 cm. long, with few to many flowers rather closely arranged at least towards the top; bracts filiform, 2–5(–8) mm. long, pubescent, early caducous; bracteoles inserted on the receptacle or on the markedly ascending pedicel, filiform, 1–2 mm. long, caducous.. Calyx 6–8(–10) mm. long, appressed puberulous; upper and lateral lobes on each side usually rather persistently coherent at the tips, triangular-subulate, longer than the tube.. Standard ovate, yellow, marked reddish-brown or orange, glabrous or almost so outside; wings as long as the keel; keel abruptly rounded in the lower half with a straight untwisted tapering beak, (10–) 11·5–15 mm. long, conspicuously lanate-pubescent on the lateral surfaces towards the upper margin.. Pod cylindrical, abruptly contracted into the 1–4 mm. long stipe, 23–30 mm. long, 8–10 mm. across, thinly appressed puberulous, 18–26-seeded.. Seeds oblong-reniform, ± 4 mm. long, with a very small aril, minutely granulate, pale yellow to brown.

It is a tropical plant. It grows in damp sites on waste places in West Africa.