西藏婆婆纳 xi zang po po na

Perennials, ca. 10 cm tall. Roots thick, to 1 mm in diam. Rhizomes horizontal. Stems several, cespitose, ascending, simple, densely villous with white multicellular hairs. Leaves basally crowded, withered at anthesis; middle and upper leaves 3 or 4 pairs and larger upward; petiole 5-7 mm, shorter on lower leaves; leaf blade deltoid-ovate to ovate, 1-2 X 1-1.5 cm, papery, densely villous with white multicellular hairs, margin deeply incised with 5-7 and often obtuse teeth on each side, apex obtuse to acute, veins conspicuously reticulate. Racemes 1 or 2, axillary from uppermost leaves, appearing terminal, 2-3 cm in flower, axis and pedicels with multicellular glandular hairs; peduncle ca. 1 cm; bracts linear-elliptic, longer than pedicel, very sparsely hairy. Pedicel ca. 2 mm at anthesis. Calyx 4-lobed; lobes narrowly elliptic, 3-4 mm, subequal, sparsely ciliate. Corolla white, rotate, ca. 1.1 cm in diam.; tube less than 1.5 mm, glabrous in throat; lower lobe obovate, other 3 lobes orbicular. Stamens slightly shorter than corolla. Ovary and young fruit strongly compressed, margin apically ciliate. Style ca. 3.5 mm. Fl. Jun.

* Valley forests; ca. 2500 m. S Xizang (Gyirong Xian).