云南千斤拔 yun nan qian jin ba

Flemingia yunnanensis Franchet; Maughania wallichii (Wight & Arnott) Kuntze; M. yunnanensis (Franchet) H. L. Li.

Shrubs, erect, ca. 1 m tall. Branchlets obviously lenticel­late, densely tomentose. Leaves digitately 3-foliolate; stipules deciduous; petiole 3-7 cm, wingless or narrowly winged, pu­bescent or tomentose; petiolules 2-4 mm, densely gray villous; leaflets almost leathery; terminal leaflet obovate or elliptic, 7-14 × 3-4 cm, basal veins 3, lateral veins 4-8 pairs, base cune­ate, apex shortly acuminate or obtuse; lateral leaflets subequal to terminal leaflet, oblique lanceolate to obliquely elliptic. Ra­ceme solitary or sometimes branched from base; inflorescence axis densely tomentose; bracts elliptic, 4-5 × 1-2 mm, pubes­cent, persistent or deciduous. Flowers 7-8 mm, clustered; pedi­cel 1-2 mm. Calyx 5-6 mm, densely clothed with silky hairs; lobes lanceolate, usually slightly longer than tube. Corolla white or yellowish, longer than calyx; standard suborbicular, ca. 6 mm, extremely short clawed, with slender auricle and callo­sity; wings oblong, ca. 4 mm, one with short acute auricle; keel slightly curved, wider than wings. Legume obliquely elliptic, ca. 10 × 6 mm, with dense very pale brown hairs and dark brown sessile glands, apex shortly beaked. Seeds usually 2, black, orbicular. Fl. and fr. Jan-Apr.

Mountain slopes, roadsides, forests; 1600-1900 m. Yunnan [India, Laos, Myanmar, Vietnam].