Shrubs or small trees, 2-5 m tall, rarely more than 10 m tall. Petiolules short, 2-3 mm; leaflets oblong or ovate-lanceolate, 5-16 × 2-6.5 cm, papery, lateral veins subparallel, slender, evident on both surfaces, base rounded, apex caudate-acuminate. Panicles 20-40 cm; rachis, bracts, and bracteoles sparsely puberulent; bracts and bracteoles pink, ovate-oblong or elliptic, bracts 1.2-2.8 × 0.5-1.4 cm, bracteoles small, 2-5 mm. Calyx tube 1.2-1.5 cm, much longer than lobes (8-10 mm); lobes dark purplish red, oblong. Petals purplish red, broadly obovate, ca. 1.2 cm including claw, apex rounded, emarginate. Anthers ca. 4 mm; staminodes usually 4, subulate. Ovary hairy, 6-9-ovuled; style slender, hairy. Legume obovoid-oblong, 12-20 cm, sutures unequal in length, ventral suture longer and curved, dehiscent; valves often spirally twisted. Seeds 2-7, brownish red, oblong, 2.2-2.5 × 1.2-1.5 cm, margin not thickened; testa thinner and fragile, surface slightly wrinkled, inside without gelatin. Fl. Jun-Aug, fr. Sep-Nov. 2n = 24*.
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It is a shrub or small tree. It grows 2-5 m tall. The leaves are compound. There are 3-4 pairs of leafets. The leaflets are oblong and 5-16 cm long by 2-7 cm wide. The flowers are in panicles 20-40 cm long. The petals are purple to red. They are broadly oval and 1.2 cm across. The pod is oblong and 12-20 cm long. There are 2-7 seeds. These are brown to red and oblong. They are 2.5 cm long by 1.5 cm wide.
Small tree.. Leaflets ± acuminate, in 3–4 pairs.. Flowers pink to purple, with conspicuous pink bracts, in panicles.
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