海红豆 hai hong dou

Adenanthera microsperma var. luteosemiralis G. A. Fu & Y. K. Yang; A. pavonina Linnaeus var. luteosemiralis (G. A. Fu & Y. K. Yang) X. Y. Zhu; A. pavonina var. microsperma (Teijs­mann & Binnendijk) I. C. Nielsen.

Trees, deciduous, 5-20 m tall. Branchlets puberulent. Peti­ole and rachis puberulent; pinnae 3-5 pairs; leaflets 4-7 pairs, with short petiolules, alternate, oblong or ovate, 2.5-3.5 × 1.5-2.5 cm, both surfaces puberulent, both ends rounded-obtuse. Racemes simple, axillary or arranged in panicles at apices of branchlets, puberulent. Flowers white or yellow, small, fragrant, shortly pedicellate. Calyx less than 1 mm, together with pedicel golden yellow puberulent. Petals oblong, 2.5-3.5 mm, usually glabrous but occasionally puberulent toward apex, slightly con­nate at base. Stamens 3-4.5 mm; anthers ca. 0.5 mm. Ovary nearly sessile, villous; style filiform; stigma small. Legume nar­rowly oblong, 10-20 × 1.2-1.4 cm, valves contorted after de­hiscence. Seeds scarlet or yellow, suborbicular to ellipsoidal, 5-8 × 4.5-7 mm. Fl. Apr-Jul, fr. Jul-Oct.

Valleys, along streams, forests, cultivated in gardens; sea level to 1000 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Taiwan, Yun­nan [Cambodia, Indonesia, Laos, Malaysia, Myanmar, Thailand, Viet­nam].