耿马密花豆 geng ma mi hua dou

Climbing shrubs. Petiole terete, ca. 6.5 cm, subglabrous; stipels subulate, as long as or slightly shorter than petiolules; petiolules thick, 5-6 mm; leaflets large, terminal one obovate-oblong, ca. 27 × 13.5 cm, symmetric, lateral ones ovate-ellip­tic, slightly smaller than terminal, asymmetric, subleathery, gla­brous abaxially, glabrous adaxially, except pilose on midrib and lateral veins, lateral veins 6 or 7 pairs, slightly curved, raised on both surfaces, apex rounded. Panicles axillary, ca. 27 cm; rachis and pedicels densely light brown puberulent; bracts narrowly lanceolate, ca. 2.5 mm; bracteoles linear, ca. 1 mm. Calyx 5-5.5 mm, puberulent on both sides; teeth 1.5-2 mm, upper 2 ± connate, apex subtruncate or emarginate, lower 3 ovate, apex obtuse or slightly acute. Corolla red; standard sub­orbicular, ca. 6 mm in diam., apex emarginate, base cuneate, claw ca. 3 mm; wings oblong, 5-5.5 mm, long ciliate at base, together with keel apex rounded, base obliquely truncate on 2 sides, with a small rounded auricle on one side, claw ca. 4 mm; keel oblong, 3.5-4 mm, claw ca. 4 mm. Anthers subglobose, 5 larger and 5 smaller. Ovary narrowly oblong, ca. 4 mm, puber­ulent, sessile. Legumes not seen. Fl. Mar.

● Open forests or secondary forests, mountaintops. Yunnan (Gengma).