榄绿红豆 lan lü hong dou

Fedorovia olivacea (L. Chen) Yakovlev.

Trees, 20-25 m, to 1 m d.b.h. Branchlets and buds densely appressed brown pilose. Leaves imparipinnate, 17-38 cm; petiole ca. 5.3 cm; rachis ca. 18.5 cm, densely appressed brown pubescent, prolonged ca. 7 mm below terminal leaflet; leaflets (9-)15-17, opposite, sometimes subopposite on lower rachis; petiolule 2-4 mm, pubescent; blades lanceolate to lanceolate-oblong or ovate, 3.4-10.5 × 1.6-2.7 cm, thickly papery, brownish pilose abaxially, glabrous or slightly hairy only along midvein adaxially, base broadly cuneate to rounded, apex acu­minate; midvein raised abaxially, impressed adaxially, lateral veins 5-8 pairs, straight or slightly arcuate, raised abaxially, slightly impressed adaxially. Inflorescences terminal panicles, or terminal or axillary racemes, densely appressed brown pilose to nearly glabrous. Legumes compressed, elliptic or obovate-lanceolate, 5.2-8.9 × 2.5-4 cm, apex acute, shortly mucronate, stipe 5-8 mm, often yellowish brown hirtellous; valves inter­nally septate, woody; persistent calyx densely appressed rusty brown pilose. Seeds (1 or)2-4, red-brown, obovate or subreni­form, ca. 1 × 1 cm, slightly compressed, hard, glossy; hilum ca. 3 mm. Fl. Apr, fr. Nov-Dec.

● Forest margins, secondary forests on mountain slopes; 700-2100 m. N Guangxi, S Yunnan.