147. Tibetia (Ali) H. P. Tsui, Bull. Bot. Lab. N. E. Forest. Inst., Harbin. 1979(5): 48. 1979.
高山豆属 gao shan dou shu
Authors: Bojian Bao & Anthony R. Brach
Gueldenstaedtia subg. Tibetia Ali, Candollea 18: 140. 1962.
Herbs, perennial. Taproot conical, strong. Stems many from collar, slender, branched, sometimes with adventitious roots. Leaves imparipinnate; stipules brown, ovate or elliptic, membranous, amplexicaul and opposite to leaves; leaflets elliptic, orbicular, or cordate, apex rounded to retuse, rarely bifid. Umbel 1-4-flowered, on axillary peduncles. Calyx brown, upper 2 teeth larger and joined. Corolla usually dark purple, rarely yellow; standard broadly obovate or obcordate, clawed; wings broadly obovate, equal in length to standard; keel oblong or obovate, small. Stamens diadelphous. Ovary cylindric, pilose or glabrous; style rolled inward. Legume cylindric, with many seeds. Seeds reniform, smooth.
About five species: Bhutan, China, India, Nepal, Pakistan; five species (four endemic) in China.