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56. Astragalus sect. Chaetodon Bunge, Mém. Acad. Imp. Sci. Saint Pétersbourg, sér. 7. 11(16): 136. 1868.
须毛组 xu mao zu
Plants perennial, herbaceous, subacaulescent or nearly so, sometimes with well-developed stem covered with ± spreading, bifurcate hairs. Stipules mostly adnate to petiole, otherwise free. Inflorescences subsessile or with a stout peduncle up to 5 cm or rarely up to 20 cm. Bracteoles absent. Calyx tubular at anthesis, at length scarcely to strongly bladderlike inflated, villous with long spreading hairs, ruptured by legume or not. Legumes sessile or subsessile, often included in calyx, villous with spreading hairs, few seeded.
Seventeen species: C Asia to China, Pakistan, and Kashmir; two species in China.
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Plants subacaulescent; stems 0.5-2 cm; peduncles 0.6-2.2 cm, bracts 7-12 mm; legumes 8-12 mm. |
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371 A. breviscapus |
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Plants caulescent; stems 2-12 cm; peduncles 2-5(-8) cm, bracts 4-8 mm; legumes 11-16 mm. |
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372 A. saccocalyx |
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