猪腰豆 zhu yao dou

Shrubs, scandent. Bark yellow, split longitudinally. Stems to 20 m, terete, sericeous and scarlet strigose when young, gla­brescent. Stipules narrowly triangular, ca. 6 mm. Leaves (13-)17- or 19-foliolate; rachis 25-35 cm, including petiole 5-8 cm; stipels filiform, caducous; petiolules 3-4 mm; leaflet blades oblong, 6-10 × 2-3.5 cm, papery or leathery, both sur­faces silvery pubescent but glabrescent or abaxially densely bright brown hirsute and adaxially rough, secondary veins 7-9 on each side of midvein, base rounded and asymmetric. Pani­cles cauliflorous, rough with scars of fallen bracts; bracts ca. 2 cm, membranous, sericeous. Pedicel ca. 2 cm. Flowers ca. 2.5 cm. Calyx cup-shaped, with trichomes, adaxial pair of teeth connate. Corolla lilac, abaxially puberulent. Legume spindle-shaped, ca. 17 × 9 cm, velutinous, indehiscent, persistently hanging on trunk. Seed 1 per legume, dark brown, reniform, ca. 8 × 4.5 cm, smooth, shiny; hilum 3.5-4 cm. Fl. Jul-Aug, fr. Sep-Nov.

Sparse thickets, evergreen broad-leaved forest margins; 200-1300 m. Guangxi, S Yunnan [Laos, Myanmar, Thailand, Vietnam].

Lower Taxa

• Afgekia filipes var. filipes
• Afgekia filipes var. tomentosa (Z. Wei) Y. F. Deng & H. N. Qin