光萼报春 guang e bao chun

Herbs perennial. Rhizomes short, with a tuft of fibrous roots. Leaves forming a rosette; petiole 2--5 cm, usually longer than leaf blade, densely pilose; leaf blade oblong to broadly ovate, 1.5--3.5 X 0.8--2.5 cm, papery when dry, abaxially copiously short glandular pilose, adaxially pilose, base cordate, rarely subrounded, margin remotely hydathode-denticulate, apex rounded. Scapes 2.5--5.5 cm, sparsely pilose; umbel solitary, 2--6-flowered; bracts linear-lanceolate, 2--3 mm. Pedicel 4--10 mm, sparsely short-stalked glandular. Flowers heterostylous. Calyx campanulate, 3.5--4 mm, ± glandular, parted to middle; lobes narrowly triangular, margin hydathode-apiculate, with 1 prominent main vein and 2 lateral veins. Corolla rose; tube ca. 8 mm; limb 1--1.2 cm wide; lobes obovate, deeply emarginate. Pin flowers unknown. Thrum flowers: stamens in upper 1/3 of corolla tube; style ca. 3 mm. Capsule obovoid, operculate. Fl. Apr.

* In limestone rock crevices; ca. 900 m. S Guizhou (Libo Xian)