线叶虎耳草 xian ye hu er cao

Herbs perennial, cespitose, 12-15 cm tall. Sterile branches with leaf rosettes. Flowering stem dark brown glandular hairy distally. Sterile branch rosette leaves spatulate-linear, 8-9.7 × ca. 1 mm, both surfaces glabrous, margin setose-ciliate. Proximal cauline leaves aggregated into a rosette; leaf blade narrowly obovate, ca. 5 × 1.7 mm, abaxially setose distally and at margin; distal leaves sometimes forming a secondary rosette subtending inflorescence, leaf blade linear, 6-7.6 × 1.1-1.5 mm, adaxially and marginally ± glandular hairy. Cyme 2.5-6.9 cm, 2-7-flowered or flower solitary; pedicels slender, 1.5-2.2 cm, sparsely dark brown glandular hairy. Sepals reflexed, ovate, ca. 2 × 1.2 mm, glabrous, veins 3, not confluent at apex, apex subobtuse. Petals yellow, oblong, ca. 6.1 × 2.1-2.2 mm, 2-callose near base, glabrous, 3-veined, base contracted into a claw ca. 0.9 mm, apex acute. Stamens ca. 3.9 mm. Ovary subsuperior, ovoid, ca. 2 mm; styles ca. 1.8 mm. Fl. and fr. Jul-Sep.

* Oak forests, rock crevices; 3500-3900 m. E Xizang (Gonjo Xian, Nyingchi Xian).