高山豆 gao shan dou

Gueldenstaedtia himalaica Baker in J. D. Hooker, Fl. Brit. India 2: 117. 1876; Amblytropis uniflora (Strachey ex Jacot Guillarmod) Kuang & H. P. Tsui; G. diversifolia Maximowicz; G. santapaui Thothathri; G. uniflora Strachey ex Jacot Guillar­mod; Tibetia himalaica f. alba X. Y. Zhu.

Taproot straight. Stems obvious. Leaves 2-7 cm, 9-13-foliolate; stipules ovate, large, to 7 mm, densely villous, apex acute; petiole sparsely villous; leaflets orbicular, elliptic, broadly obovate, or ovate, 1-9 × 1-8 mm, appressed villous, apex re­tuse. Umbel 1-3-flowered, rarely 4-flowered; rachis usually ca. as long as leaves or slightly longer, sparsely villous; bract narrowly triangular. Calyx campanulate, 3.5-5 mm, villous; upper 2 teeth 1.5-2 mm, joined from base to middle. Corolla bluish purple, purple, blue, mauve, violet, or red; standard ovate-orbicular, 6.5-8 × 4.5-7.5 mm, base with claw ca. 2 mm, apex retuse; wings broadly cuneate, 6-7 × 2-3 mm; keel sub­rectangular, 3-4 × 1-2 mm. Ovary villous. Legume pilose or glabrescent. Fl. May-Jun, fr. Jul-Aug.

Hilly areas, alpine meadows, rocky slopes, forests; 3000-5000 m. Gansu, Qinghai, Sichuan, Xizang, Yunnan [Bhutan, India, Nepal, Paki­stan].

The type was originally collected in India (Sikkim).