Description from Flora of China
Perennials. Stems creeping at least basally, 5-20 cm, villous, internodes 0.2-1(-3) cm and leaves crowded, to internodes ca. 3 cm and leaves evenly distributed. Leaves sessile or subsessile; leaf blade elliptic, 1-2 cm X 3-7 mm, papery, glabrous, base cuneate and attenuate into an inconspicuous petiole, margin entire basally, serrate at middle and apically, apex obtuse to acute. Racemes 1 or 2, axillary from lower and middle leaves, 5-15 cm, ca. 10-flowered, axis and pedicels densely with multicellular glandular hairs; bracts linear to linear-lanceolate, shorter than pedicel. Pedicel straight, ca. 1 cm in fruit. Calyx 4-lobed; lobes linear-elliptic, ca. 5 mm, subequal, with multicellular glandular hairs. Corolla red or white, rotate, 1-1.2 cm in diam.; tube less than 1.5 mm; throat hairy. Capsule pliciform-rhomboid, strongly compressed, ca. 5 X 7 mm, glandular, base angle ca. 120°, lateral angles acute to obtuse, margin apically with multicellular glandular hairs, emarginate. Style ca. 3 mm. Seeds 2-10 per locule, flattened, slightly convex, ca. 1 mm. Fl. Jun.
* Forests; 2000-3000 m. Yunnan (Dali Xian, Yangbi Xian).