Description from Flora of China
Pterolobium subvestitum Hance.
Climbers, prickly, ferruginous puberulent throughout. Leaves 19-20 cm; rachis with recurved prickles in pairs; pinnae 7-12 pairs; leaflets 15-20 pairs, alternate, oblong, 7-13 × 4-5 mm, both surfaces ferruginous hairy, much denser abaxially, base obliquely truncate, apex obtuse-rounded. Panicles axillary, to 30 cm. Flowers numerous, compact in upper part, sparse in lower part of inflorescence; pedicels ca. 1.5 cm, sparsely puberulent. Sepals 5, lowest one ca. 8 mm, others ca. 5 mm. Petals yellowish, suborbicular, ca. 8 mm wide, upper one smaller, ca. 4 mm wide, clawed. Stamens ca. 1 cm; filaments pilose in lower part. Pistil slightly longer than stamens, ca. 1.3 cm; ovary and lower part of style pubescent; stigma truncate, hairy. Legume obovoid, adaxial suture straight, narrowly winged, puberulent; valves leathery, unarmed, dehiscent along dorsal suture when mature. Seed solitary, brownish red, shiny, reniform, ca. 11 × 6 mm, with cyclic veins. Fl. Aug-Sep, fr. Apr, Sep-Dec.
● Among bushes, foothills, by streams; 200-800 m. Guangdong, Guangxi, S Hunan, S Jiangxi.