西南虎耳草 xi nan hu er cao

Hirculus signatus (Engler & Irmscher) Losinskaja; Saxifraga signata var. lancepetala Handel-Mazzetti.

Herbs perennial, (5-)10-20 cm tall. Stem dark brown glandular hairy. Basal leaves aggregated into a rosette; leaf blade spatulate, 1.5-1.6 cm × 2.1-3 mm, carnose, both surfaces glabrous, margin setose-ciliate. Cauline leaves remote, oblong to oblong-obovate, ca. 1 cm × 3 mm, dark brown glandular hairy, margin entire, apex recurved, acute. Inflorescence corymbose, 3.5-8 cm, 4-24-flowered; branches 3-8 cm, 2- or 3-flowered; pedicels 1.5-1.8 cm, dark brown glandular hairy. Sepals spreading to reflexed, triangular-ovate to narrowly so, 4-9 × 2-3.5 mm, dark brown glandular hairy abaxially, adaxially distally, and marginally, veins 5-7, confluent at apex, apex subobtuse. Petals yellow, adaxially purple spotted proximally, ovate to subovate, 5.8-8.7 × 2.5-4 mm, 2-callose, 3-7-veined, base usually truncate, with a distinct claw 1-1.6 mm, apex acute. Stamens 4-5 mm. Ovary subsuperior, broadly ovoid, ca. 2.1 mm; styles ca. 1.4 mm. Fl. and fr. Jul-Sep.

* Alpine meadows, rock crevices; 2800-4600 m. S Qinghai (Yushu Xian), W Sichuan, E Xizang, NW Yunnan.