龙州秋海棠 long zhou qiu hai tang

Herbs, rhizomatous. Rhizomes creeping, tortuous, crisped-pilose. Leaves all basal; stipules caducous, ovate or triangular, 5-7.5 × 3-4 mm, ciliate; petiole 4-16 cm, hirsute-villous; blade adaxially with a whitish band, obliquely broadly ovate, 5-14 × 4-10.5 cm, papery, abaxially crisped-pilose, major veins villous, adaxially densely tuberculate-based setulose, basally 5-7-veined, tertiary veins percurrent and reticulate, base cordate, margin denticulate or serrulate, apex acute or acuminate. Inflorescences axillary; peduncle 6.5-12 cm; flowers 3-15 in a dichasial cyme; bracts caducous. Staminate flower: pedicel 0.6-2 cm; tepals 4, outer 2 broadly ovate or suborbicular, 6-11 × 6.5-10 mm, apex rounded, inner 2 obovate-oblong, ca. 7 × 3 mm, apex obtuse; androecium zygomorphic; stamens numerous; filaments 0.7-1.3 mm, fused at base into a short column; anthers obovoid, 0.7-0.9 mm. Pistillate flower: tepals 3, outer 2 broadly ovate, inner 1 smaller; ovary ellipsoid, glabrous, l-loculed with parietal placentation; styles 3. Capsule nodding, oblong, 5-10 × 3.5-5 mm, subequally 3-winged, wings lunate.

● Rock walls of caverns, shaded rocky places of forest understories, understories of secondary forests on limestone hills; ca. 700 m. Guangxi.