河谷地不容 he gu di bu rong

Deciduous vines herbaceous or slightly woody at base, glabrous. Branches and branchlets terete, grayish brown when dry, longitudinally striate. Petiole longer than or subequal to leaf blade, slightly thick; leaf blade peltate, insertion 2-3 cm from margin, usually inconspicuously triangular-rotund, 8-15 cm, width subequal to length, papery, both surfaces dull, base subtruncate or slightly emarginate, apex obtuse or slightly rounded, often with a finely mucronate acumen, palmately 9-12-veined, veins thick, together with fine reticulation raised abaxially, becoming brown when dry, slightly glossy. Inflorescences compound umbelliform cymes, axillary; male peduncle 3-5 cm; umbellet rays 5 or 6, ca. 2 cm; cymelets 4-6-fascicled at end of umbellet pedicel; bracts and bracteoles linear or linear-subulate. Male flowers: sepals 6 in 2 whorls, outer whorl elliptic-obovate, 2-2.3 mm, apex obtuse or mucronate, inner whorl slightly smaller, base abruptly narrowed, apex rounded; petals 3, orangish yellow, very broad, 0.8-1 × 1.5-1.8 mm, margin involute, imbricate; synandrium 0.6-0.7 mm. Female inflorescences and flowers unknown. Infructescences compound umbelliform with peduncle thick, 5-7 cm; umbellet pedicels 7-9, 1-2 cm, prostrately extended; fruiting pedicel not fleshy. Drupes obovate, ca. 6 mm. Fl. May-Jul, fr. Jul-Aug.

● Stony slopes in hot valleys. Yunnan (Gejiu).