四川千斤藤 si chuan qian jin teng

Herbaceous vines, glabrous. Branches slender, slightly hard, straightly striate. Petiole 4-7 cm; leaf blade peltate, insertion ca. 1 cm from margin, triangular, usually 6-10 × 5.5-9.5 cm, thinly leathery, base subtruncate, apex sometimes obtuse, palmately 7- or 8-veined, conspicuously raised abaxially, reticulation slightly conspicuous. Inflorescences simple umbelliform cymes, axillary, slightly fleshy; peduncle of male inflorescences slender and straight, as long as petiole, apex ebracteolate; cymelets 4-8, fascicled, 3-7-flowered. Male flowers: sepals 6 in 2 whorls, ovate-rounded or ovate, 1.7-2 mm, cuneate base 0.6-0.9 mm, apex caudate-acuminate; petals 3, slightly fleshy, conchiform, 0.6-0.7 × 1-1.2 mm. Female flowers: sepals and petals 3, size and shape as in male flowers; pistillate style subequal to petal. Infructescences axillary, similar to male inflorescences in structure; fruiting peduncle 8-9 cm. Endocarp red, obovate, ca. 7 × 3 mm; condyle perforate. Fl. summer.

● Forests. Sichuan (Emei Shan and vicinity).