思茅崖豆 si mao ya dou

Fordia leptobotrya (Dunn) Schot, Dasuki & Buijsen.

Trees, 18-25 m tall. Bark gray, rough. Branchlets brown pubescent, brittle, glabrescent. Leaves 7- or 9-foliolate; rachis 20-50 cm, including petiole 5-6 cm; leaflet blades oblong-lan­ceolate, 12-25 × 5-8 cm, papery, secondary veins 11-13 on each side of midvein, base cuneate to obtuse, apex acuminate. Pseudoracemes axillary, 35-50 cm, straight, brown pubescent; rachis nodes with 2-5 flowers. Pedicel ca. 2 mm. Flowers 1.1-1.3 cm. Calyx ca. 5 mm, pubescent. Corolla white; standard or­bicular, without basal calluses. Stamens monadelphous. Ovary sericeous, with 3-5 ovules. Legume linear-oblong, 7-20 × 3.5-4 cm, flat, base obtuse, apex beaked; valves leathery; both su­tures obscure. Seeds 1-3 per legume, pale yellow, thickly len­ticular, shiny. Fl. Apr, fr. Oct-Jan.

Woodlands on slopes; 300-1000 m. S Yunnan [Laos, Vietnam].

Millettia leptobotrya is represented in China by the typical variety. Another variety, Millettia leptobotrya var. macrocarpa P. K. Lôc, is endemic to Vietnam.