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34. Astragalus sect. Aegacantha Bunge, Mém. Acad. Imp. Sci. Saint Pétersbourg, sér. 7. 11(16): 42. 1868.
刺叶柄组 ci ye bing zu
Shrubs spiny, much-branched, often cushionlike with basifixed hairs. Leaves paripinnate with spiny rachis; stipules adnate to petiole, often amplexicaul; leaflets mostly strongly becoming smaller toward tip of leaves. Racemes shortly pedunculate, with few pedicellate flowers. Bracteoles sometimes present. Calyx tubular, ruptured by fruit. Standard emarginate. Legumes incompletely to completely 2-locular with leathery valves.
Fifty-six species: mostly in Afghanistan, also in W China, N India, Kashmir, Nepal, Pakistan, C Asia, and SW Asia (Iran); three species in China.
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| 1 |
Petals hairy. |
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235 A. lasiosemius |
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Petals glabrous |
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(2) |
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| 2 (1) |
Leaflets in 4-6 pairs, mostly hairy on both surfaces; stems of current year up to 40 cm. |
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236 A. multiceps |
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Leaflets in 8-14 pairs, glabrous adaxially; stems of current year 1-2(-10) cm. |
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237 A. oplites |
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