假大柱头虎耳草 jia da zhu tou hu er cao

Hirculus macrostigmatoides (Engler) Losinskaja; Saxifraga oreophila Franchet var. dapaoshanensis J. T. Pan.

Stem 2.5-7 cm tall, proximally eglandular pubescent, distally glandular hairy. Leaf buds conspicuous in axils of proximal and median cauline leaves, developing into sterile shoots by anthesis. Leaves of sterile shoots suboblong, ca. 4 × 1.2 mm, both surfaces glabrous, margin sparsely setose-ciliate, apex mucronate or aristate. Proximal cauline leaves subspatulate, ca. 6 × 1.5 mm, both surfaces glabrous, margin sparsely setose-ciliate; median leaves larger than proximal and distal ones; distal leaves oblong to linear-oblong, 6-7.4 × 1.5-2.2 mm, both surfaces glabrous, margin glandular ciliate, apex aristate-mucronate. Flower solitary; pedicel 0.8-1.3 cm, glandular hairy. Sepals erect or spreading, ovate to subelliptic, 3-4 × 1.5-2.5 mm, abaxially and marginally glandular hairy, veins 3-7, not, partly, or fully confluent at apex, apex obtuse or subacute. Petals yellow, obovate, (5-)7-8 × 2-4 mm, 2-4-callose, 3-6-veined, base contracted into a claw 0.6-1 mm, apex obtuse. Stamens 4.5-6 mm. Ovary subsuperior; styles 1.3-3 mm. Fl. Jul-Aug.

* Alpine meadows, scrub, rock crevices; 3900-5000 m. W Sichuan (Batang Xian, Kangding Xian, Litang Xian), Xizang, NW Yunnan (Dêqên Xian, Gongshan Drung-Nu Zu Zizhixian, Zhongdian Xian).