天全淫羊藿 tian quan yin yang huo

Herbs, 15-30 cm tall. Leaves basal and cauline, nearly leathery when mature, basal leaves mostly with 5 leaflets, sometimes 3, cauline leaves with 3 or 5 leaflets; leaflets ovate, to 4 × 3 cm, both surfaces glabrous, base cordate with lobes rounded and slightly diverging or separated by a narrow sinus, those of lateral leaflets moderately unequal, margin remotely spinose-serrate, apex acuminate. Flowering stem with 1 leaf or 2 leaves at same height or at different heights. Inflorescence simple, racemose, loosely few flowered (3-10-flowered), ca. 6 cm. Pedicel to 2 cm, with short glandular hairs. Flowers large, ca. 3 cm in diam. Outer sepals caducous; inner sepals spreading horizontally, pale sulfur-yellow, lanceolate, ca. 11 × 4 mm, apex obtuse. Petals pale sulfur-yellow, slightly longer than inner sepals; spur elongated, subulate, slightly curved, ca. 1.3 cm, expanded at base into a lamina ca. 8 mm high. Stamens included, ca. 3 mm; filaments pale sulfur-yellow, ca. 0.5 mm; anthers pale sulfur-yellow, ca. 2.5 mm. Fruit unknown. Fl. Apr, fr. unknown.

● About 2000 m. Sichuan (Erlang Shan, Tianquan).