珠峰党参 zhu feng dang shen

Wahlenbergia dicentrifolia C. B. Clarke in J. D. Hooker, Fl. Brit. India 3: 430. 1881; Campanopsis dicentrifolia (C. B. Clarke) Kuntze.

Plants glabrous throughout. Roots tuberous, subovoid or ellipsoid, ca. 6 × 3 cm. Stems erect, 40-50 cm tall, branched at upper part. Leaves mostly alternate, those on branches subopposite; petiole 2-5 mm; blade ovate or ovate-oblong, up to 3 × 1.5 cm, base cuneate or rounded, margin entire or sinuous, sometimes slightly recurved, apex acute or obtuse. Flowers solitary, terminal on main stems and branches; pedicels 0.5-3 cm. Calyx tube adnate to ovary up to top, obconical, 5-7 × 7-10 mm; lobes sublinear, 7-10 × ca. 1 mm, margin entire, apex acuminate; sinus between lobes broad and obtuse. Corolla pale blue, campanulate, 2.5-3.5 × 2.5-3.5 cm, 5-fid to 1/3; lobes ovate, apex acute. Filaments slightly dilated, slender above, 3-4 mm; anthers 7-8 mm. Capsule broadly conical above, obconical or obdeltoid-conical below, obscurely 10-ribbed. Seeds elliptic, strongly compressed. Fl. and fr. Aug-Oct.

Broad-leaved forests on rocks; 2700-3300 m. S Xizang (N-facing slopes of Qomolangma Feng) [NE India, Nepal].