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FOC | Family List | FOC Vol. 10 | Fabaceae | Derris

16. Derris palmifolia Chun & F. C. How, Acta Phytotax. Sin. 2: 68. 1952.

掌叶鱼藤 zhang ye yu teng

Lianas, glabrous except for pubescent young branchlets and flower buds. Leaves subpalmately pinnate, 5-7 cm, with 5 closely inserted leaflets on an abbreviated rachis; leaflet blades ovate-elliptic to oblong, basal pair each 2-3.5 × 1.3-1.5 cm, remaining pairs each 4-5 × ca. 1.5 cm but sometimes apical one larger, secondary veins 6-9 on each side of midvein and very slender, base cuneate to slightly subrounded, apex shortly acu­minate. Flowers unknown. Infructescences axillary, 2-3 × as long as leaves, broadly paniculate, with few elongated spreading branches. Legume oblong-ligulate, 4-7 × 1.3-1.7 cm, reticulate veined when dry, base rounded to truncate, apex obliquely pointed; abaxial suture with a less than 1 mm wide wing, adaxial suture with a ca. 2 mm wide wing. Seed 1(or 2) per legume. Fr. Sep.

● Mountain valleys; ca. 1700 m. Yunnan.


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