红萼崖豆 hong e ya dou

Trees. Bark gray. Branchlets rusty strigose, glabrescent, spotted lenticels prominent. Leaves 7-11-foliolate; rachis ca. 25 cm, including petiole ca. 8 cm; leaflet blades ovate-lanceolate to elliptic-lanceolate, 3-6 × 1.5-2 cm, papery, abaxially scarlet strigose on midvein and margins, adaxially glabrous and shiny, base narrowly cordate, apex caudate. Pseudoracemes axillary near apex of branchlets, 6-7 cm, densely dark brown strigose; rachis nodes with 2 or 3 flowers. Pedicel ca. 3 mm. Flowers ca. 9 mm. Calyx dark red, ca. 3 mm, with sparse trichomes; teeth truncate, ciliate. Corolla lilac; standard glabrous, basally with 2 minute calluses, base rounded. Ovary villous, with 4 or 5 ovules. Legume linear-oblong, 9-10 × ca. 2 cm, flat, slightly curved, brown tomentose when young, glabrescent, base tapered; su­tures thickened; valves woody, spirally twisted. Seeds 2 or 3 per legume, chestnut-brown, lenticular, ca. 1.3 × 1 cm, smooth. Fl. Mar-Jun, fr. year-round.

Evergreen broad-leaved forests; 600-700 m. S Yunnan [Cam­bodia, Laos, Thailand, Vietnam].