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FOC | Family List | FOC Vol. 10 | Fabaceae | Astragalus

243. Astragalus bhotanensis Baker in J. D. Hooker, Fl. Brit. India. 2: 126. 1876.

地八角 di ba jiao

Astragalus bhotanensis var. montigenus Handel-Mazzetti; A. brachycephalus Franchet; A. brachycephalus var. minor Pampanini; A. hamulosus H. Léveillé.

Plants 20-90 cm tall, with symmetrically or asymmetri­cally bifurcate appressed hairs 0.3-0.8 mm, often with mostly ± spreading, longer, basifixed hairs mixed in. Stems mostly sev­eral, prostrate or ascending to erect, hollow, 2-6 mm thick, gla­brous or sparsely to rather densely covered with medifixed hairs. Leaves 4-20 cm; stipules shortly connate behind stem or up to 1/4 of length, sparsely white and black hairy; petiole 0.5-3.5 cm, like rachis sparsely to rather densely covered with medifixed hairs up to 2 mm and sometimes sparsely with spreading basifixed hairs; leaflets in 10-17 pairs, narrowly ellip­tic, 5-23 × 3-13 mm, abaxially loosely to rather densely covered with appressed, medifixed hairs, adaxially glabrous or rarely with very few long basifixed hairs, rounded at apex. Ra­cemes dense, ± umbellate-globose, 8-20-flowered; peduncle 4-15 cm, sparsely to loosely covered with appressed, medifixed hairs and sometimes also longer, ± spreading, basifixed, white hairs; bracts 4-8 mm, glabrous or ciliate. Bracteoles 2-3 mm. Calyx 5-8 mm, sparsely to loosely covered with predominantly black, very short, sometimes also longer hairs up to 0.5 mm; teeth 2-3.5 mm. Petals dark purple to blue-purple or more rarely ?yellow or standard and keel purplish and wings white; standard obovate, 10-14 × 4-6.5 mm; wings 9-12 mm; keel 8-10 mm. Legumes sessile, linear, 15-30 mm, 2.5-4 mm high and wide, with a short straight beak, incompletely 2-locular.

600-2800 m. Gansu, Guizhou, Shaanxi, Sichuan, Xizang, Yunnan [Bhutan, S Korea].


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