Small tree. Leaves abruptly pinnate; flowers in long drooping panicles, showy, yellow; pods cylindrical, up to 2 ft. long and ab. ½ in. in diameter, break transversely. Fung Prov.; Kordofan Prov.; Darfur, Bahr El Ghazal & Mongalla Provinces. =C. occidentalis= _Linn._ ’SORIB (Baggara) & SENNA—Arab; ASHASHI (Dilling) & ASHASHINI (J. Ghulfan)—Nuba. Semi-woody herb, up to 5 ft. high. Leaves abruptly pinnate; rachis 4-6 in. long, with a gland at base; leaflets 4-5 pair, narrow with acute apex. Flowers yellow; pod linear, slightly compressed between the seeds. Kassala Prov. (Gallabat); Berber Prov. (Shendi); Khartoum, Blue Nile, Fung, Kordofan, Darfur & Mongalla Provinces. The leaves, roots, and seeds are used medicinally, i.e., pounded leaves for healing fresh wounds, the seeds in ringworm, and the root as diuretic. An infusion of the leaves is considered useful in bilious fevers. The seeds toasted, and ground, are used as a substitute for coffee. =C. Sieberiana= _DC._ Small tree, glabrous or extremities puberulous. Leaflets 6-14 pair, ovate-elliptical, up to 3½ in. long. Racemes 4-18 in. long; bracts present during flowering; flowers yellow; 3 stamens longer than the other 7. Pod sub-cylindrical, elongate. Fung Prov.; Nuba Mts. Prov.; Bahr El Ghazal Prov. (Jur-land); Mongalla Prov. Wood very hard and heavy, fibrous, yellow ochre colour, density 0.818. Difficult working, suitable for joinery, cart building. Resistant to pests. =C. Arereh= _Del._ GARADAYA (Fung)—Arab; KAFA—Burun; UMFLOGORU—Hameg; GAFELE—Golo; MASISI—Bongo. Shrub or small tree. Leaflets 7-9 pairs, ovate to lanceolate, obtusely acuminate, reticulately-veined, 2½ in. long. Racemes terminal short; bracts present at flowering time; petals yellow; 3 stamens longer than the rest. Pod cylindrical, up to 20 in. long and 1 in. in diam., dehisces longitudinally showing numerous dissepiments. Nubia; Blue Nile Prov.; Kordofan Prov. (South); Fung Prov. (Jongol’s Post); Bahr El Ghazal Prov. (near Chak Chak); Mongalla Prov. =C. Tora= _Linn._ HEREISHAH—Arab; KAITELANG (Dilling)—Nuba; KIAR (Mongalla)—Dinka. Erect annual, 1-2 ft. high. Leaflets 3-pair, obovate, with a gland on the rachis between the lowest one or two pairs. Flowers yellow, solitary or in pairs; pod 6-8 in. long, thin, quadrangular, curved when young. Kassala Prov.; Blue Nile Prov. (Abu Haraz); Fung Prov. (Jongol’s Post); White Nile Prov. (J. Arashkol); Upper White Nile Prov.; Bahr El Ghazal Prov. (Jur-land: Agade); Mongalla Prov.; Darfur Prov. (Kulme). Has similar properties to _C. occidentalis_ Linn. (above). =C. obovata= _Collad._ SANNA or SENNA EL KELB—Arab; AMBARKI—Hadendowa; ALL’A (Dilling)—Nuba. Bushy herb. The flat pod has a series of crested plaits on its sides. Leaflets 3-7 pairs, obovate to oblong. Racemes axillary, bracts rotundate, ovate; 2 anthers longer than the rest. Khartoum Prov.; Blue Nile Prov., and most parts of the Northern Sudan.