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FOC | Family List | FOC Vol. 10 | Fabaceae | Crotalaria

10. Crotalaria ochroleuca G. Don, Gen. Hist. 2: 138. 1832.

狭叶猪屎豆 xia ye zhu shi dou

Herbs or shrublets, erect, to 1.5 m tall. Branches ribbed, pubescent when young but glabrescent. Stipules absent. Leaves 3-foliolate; petiole 1-3 cm; petiolules ca. 1 mm; leaflet blades linear to linear-lanceolate, 5-9(-12) × 0.5-1 cm, abaxially sparsely pilose, adaxially glabrous, base broadly cuneate, apex acuminate and mucronate. Racemes terminal, 10-15 cm, 10-15-flowered, lax; bracts minute. Pedicel 3-5 mm; bracteoles inserted at base of calyx tube, similar to bracts. Calyx subcam­panulate, ca. 4 mm, 5-lobed, glabrous; lobes triangular. Corolla pale yellow or white, exserted far beyond calyx; standard ob­long, 0.8-1.2 cm, base with 2 appendages; wings obovate, ca. 1.3 cm; keel 1.7-2.3 cm, longer than wings, shortly rounded, beak rather long and projecting. Ovary subsessile. Legume oblong, 4-7 × 1.5-2 cm, 20-30[-100]-seeded, sparsely pubes­cent. Seeds pale yellow to orange, reniform, smooth. Fl. Aug-Oct, fr. Nov-Dec.

Shaded places with thin soil. Cultivated or naturalized in Guang­dong, Guangxi, and Hainan [native to Africa; introduced in Australia, North America, Papua New Guinea, and South America (Brazil)].


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