Begonia sinovietnamica C. Y. Wu

Herbs. Rhizomes elongate. Stems absent or very short. Leaves basal; stipules ovate-oblong, 7-11 mm, membranous, abaxially pubescent, margin entire, apex cuspidate; petiole 8-20 cm, densely reddish brown villous; blade ovate or broadly ovate, asymmetric, 5.5-11 × 4.8-8.5 cm, abaxially densely hirsute, adaxially hirsute, venation palmate, 6-8-veined, base oblique, cordate, margin irregularly serrulate or biserrate, apex shortly caudate or acuminate. Inflorescences 9-12 cm tall; hispidulous or subglabrous; bracts lanceolate, ca. 8 mm, margin ciliate, apex acuminate. Staminate flowers: pedicel 1-1.5 cm; tepals 4, white, outer 2 broadly ovate-oblong, ca. 2.1 × 1.6 cm, abaxially shortly pilose, inner 2 oblong, ca. 1.2 × 5-6 mm; stamens numerous; filaments ca. 1.2 mm, free; anthers oblong, ca. 1.5 mm, apex obtuse. Pistillate flowers: pedicel 1-1.5 cm; tepals 5, white, outer 2 obovate-oblong, glabrous; ovary glabrous or sparsely short-pilose, 3-loculed; placentae axile, bilamellate; styles 3, fused at base; stigmas 2-cleft, spiraled. Capsule nodding, ovoid, ca. 1 × 1.1 cm, subequally 3-winged. Fl. Jul, fr. Aug.

● Understories of broad-leaved forests, on slopes or by streams. Guangxi (Dongxing, Guiping).