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2. Astragalus sect. Haematodes Bunge, Mém. Acad. Imp. Sci. Saint Pétersbourg, sér. 7. 11(16): 15. 1868.
廉荚组 lian jia zu
Plants annual, with basifixed hairs. Stipules shortly adnate to petiole. Inflorescence a loose raceme. Calyx campanulate or shortly tubular. Petals unequal; limbs of wings rounded to emarginate at apex. Stigma glabrous or hairy. Legumes sessile, mostly linear and curved, keeled ventrally, deeply grooved dorsally, incompletely to completely 2-locular; valves with a simple or double indumentum, in latter case longer hairs often inserted in small tubercles.
Eleven species: Afghanistan, NW China, Pakistan, Russia; N Africa, C and SW Asia, S Europe; two species in China.
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Leaflets in 4-6 pairs, linear to very narrowly elliptic, 8-10 × as long as wide, glabrous adaxially; legumes 3-5 cm. |
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5 A. campylorhynchus |
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Leaflets in 1-3 pairs, ovate to obovate, ca. 2 × as long as wide, hairy adaxially; legumes 1-3 cm. |
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4 A. arpilobus |
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