歪叶秋海棠 wai ye qiu hai tang

?Begonia menglianensis Y. Y. Qian.

Herbs, rhizomatous. Rhizomes elongate. Leaves basal; stipules ovate, 7-8 × ca. 5 mm, membranous, apex acute; petiole (6-)15-22 cm, densely villous; blade abaxially brownish purple, adaxially pale greenish to whitish along main veins against reddish background color, very shallowly lobed, asymmetric, ovate to broadly ovate, 7-14 × 5-11 cm, abaxially villous on veins, adaxially densely hirsute, venation palmate, 7- or 8-veined, base cordate to deeply cordate, margin irregularly serrulate, very shallowly divided; lobes triangular, apex acute or acuminate. Inflorescences (6-)15-18 cm, pubescent or subglabrous; bracts oblong, ca. 10 × 4 mm, sparsely ciliate when young, apex acute. Staminate flowers: pedicel 1.6-3 cm; tepals 4, pinkish, outer 2 oblong to ovate, 1.4-1.8 × ca. 0.9 cm, outside pilose, inner 2 elliptic, 10-13 × ca. 7 mm; stamens numerous; filaments free; anthers oblong; connective extended, acuminate. Pistillate flowers: tepals 5; ovary sparsely pilose, 2-loculed; placentae axile, bilamellate; styles 2; stigmas 2-cleft, spiraled. Capsule nodding, unequally 3-winged; abaxial wing broadly falcate, 1.7-2.1 cm; lateral wings ca. 5 mm. Fl. Jun-Sep.

● Scrubby vegetation, on rocks in shaded moist environments; 1000-1500(-1800) m. S Yunnan.