黑腺虎耳草 hei xian hu er cao

Hirculus maximowiczii (Losinskaja) Losinskaja; H. nigroglandulosus (Engler & Irmscher) Losinskaja; Saxifraga hirculus Linnaeus var. platypetala Franchet; S. maximowiczii Losinskaja.

Herbs perennial, cespitose, 5-10(-12) cm tall. Stem densely dark brown glandular hairy. Basal leaves with petiole 0.6-1.8 cm (on proximal leaves), margin brown crisped eglandular villous; leaf blade ovate to narrowly so, 0.6-1.4 cm × 3-6 mm, usually glabrous, apex subobtuse or acute. Cauline leaves 2-5; petiole 3-6 mm, longer in proximal leaves, reduced or absent in distal leaves, margin dark brown glandular villous; leaf blade lanceolate to linear, 1-2 cm × 1.5-6 mm, abaxially glabrous, adaxially often and margin always with dark brown, long (ca. 0.75 mm), eglandular hairs, apex subobtuse or acute. Flower solitary, rarely 2; pedicel 1-3 cm, densely black glandular hairy. Sepals erect, then spreading to reflexed, ovate or elliptic to broadly elliptic, 4-6.5 × 2.7-5.5 mm, abaxially and marginally black glandular hairy, veins 3-9, partly or fully confluent at apex, apex obtuse. Petals yellow or orange-yellow, elliptic or broadly so to broadly obovate, 0.7-1.3 cm × 5-8.8 mm, 2-11-callose, 5-9-veined, base contracted into a claw 0.6-1.2 mm, apex obtuse or retuse. Stamens 5.5-6 mm. Ovary subsuperior, subglobose, 3.2-6.2 mm; styles 1-2 mm. Fl. and fr. Jun-Sep.

Forests, scrub, alpine meadows, rock crevices; 3300-4800 m. W Sichuan (Daocheng Xian), SE Xizang, NW Yunnan [Myanmar].