顶峰虎耳草 ding feng hu er cao

Hirculus cacuminum (Harry Smith) Losinskaja.

Herbs perennial, densely cespitose, 2-5.5 cm tall. Stem pale brown glandular hairy. Basal leaves aggregated; petiole 4-5 mm, margin glandular villous; leaf blade lanceolate to oblong-linear, 5-10 × 0.9-2.5 mm, abaxially glabrous, adaxially and marginally hispid, apex aristate. Cauline leaves narrowly lanceolate to oblong-linear, 0.5-1.2 cm × 1-1.5 mm, glandular hairy, apex aristate. Flower solitary; pedicel 1.8-2 cm, dark brown glandular hairy. Sepals spreading, triangular-ovate, 3-3.7 × 1.8-2.5 mm, abaxially glandular hairy, adaxially and marginally glabrous, veins 3, not confluent at apex, apex obtuse. Petals yellow, oblong, 6-8 × 1.5-3 mm, 2-callose, 3-veined, base with a claw ca. 0.5 mm, apex subobtuse or acute. Stamens ca. 5 mm. Ovary semi-inferior, ovoid, ca. 4 mm; styles divergent, ca. 2.5 mm. Fl. Jul-Aug.

* Alpine meadows; 4700-5200 m. W Sichuan.