阿墩子虎耳草 a dun zi hu er cao

Hirculus crassulifolius (Engler) Losinskaja; Saxifraga crassulifolia Engler.

Herbs perennial, cespitose, forming cushions, 0.5-2 cm tall. Shoots branched. Flowering stem glabrous proximally, glandular hairy distally. Cauline leaves aggregated into a rosette, spatulate, 3.5-4 × 1.6-1.8 mm, carnose, glabrous, 3-veined, apex obtuse, triquetrous; distal leaves remote, suboblong, 4.3-5.4 × 1-2 mm, glabrous, 5-veined, apex obtuse. Flower solitary; pedicel slender, 4-6 mm, glandular hairy. Sepals reflexed, suboblong, 1-1.5 × ca. 0.7 mm, subcarnose, glabrous, veins 3, confluent at apex, apex obtuse. Petals yellow, elliptic to ovate, 2-3 × ca. 1 mm, obscurely 4-callose, 3- or 4-veined, base contracted into a claw ca. 0.5 mm, apex obtuse or acute. Stamens 1.5-2.5 mm. Ovary subsuperior, broadly ovoid, ca. 1.5 mm; styles 0.5-1 mm. Fl. Jul-Aug.

* Alpine meadows, rock crevices; 4300-5200 m. N and W Sichuan (Daocheng Xian, Kangding Xian, Songpan Xian), NW Yunnan (Dêqên Xian).