橙黄虎耳草 cheng huang hu er cao

Hirculus confertifolius (Engler & Irmscher) Losinskaja; H. gatogombensis (Engler) Losinskaja; Saxifraga biflora T. C. Ku (1989), not Allioni (1785), nor Ledebour (1844); S. confertifolia Engler & Irmscher; S. confertifolia var. glabrifolia Engler & Irmscher; S. gatogombensis Engler; S. wangiana Zhmylev.

Herbs perennial, cespitose, 4-10.5 cm tall. Shoots branched, with leaf rosettes. Flowering stem branched, brown glandular hairy, leafy. Rosette leaves elliptic to spatulate-oblong, 3-6 × 1-1.6 mm, carnose, glabrous on both surfaces or abaxially sparsely setose, margin setose-ciliate, apex acute, mucronate. Cauline leaves oblong or lanceolate to linear, 4-7 × 0.5-2 mm, largest near middle of stem, carnose, both surfaces glabrous, margin eglandular ciliate on proximal leaves, glandular ciliate on distal leaves, sparsely setose-ciliate near apex, apex obtuse or acute, mucronate. Cyme 2-12-flowered, occasionally flower solitary; pedicels slender, 0.6-1.7 cm, proximally dark brown glandular hairy. Sepals reflexed, ovate, 1.4-2.3 × 1-1.4 mm, carnose, glabrous or sparsely glandular hairy, veins 3, not confluent at apex, apex obtuse or acute. Petals yellow, proximally purple or orange spotted, ovate to suboblong, 3.3-5.9 × 1.5-2.6 mm, 2-callose near base, 3-5-veined, base narrowed into a claw 0.3-1 mm, apex obtuse or acute. Stamens 1.5-4 mm. Ovary subsuperior, broadly ovoid, 1.5-2.2 mm; styles 0.3-1.5 mm. Fl. and fr. Jul-Sep.

* Alpine meadows, rock crevices; 3000-4200 m. W Sichuan, C Shaanxi (Hua Xian, Mei Xian), NW Yunnan.