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

98. Astragalus agrestis G. Don, Gen. Hist. 2: 258. 1832.

毛喉黄耆 mao hou huang qi

Astragalus dasyglottis Candolle; A. hypoglottis Linnaeus var. dasyglottis (Candolle) Ledebour.

Plants 10-30 cm tall, with ± appressed hairs 0.3-0.5 mm and up to 0.9 mm in leaflets and calyx. Stems few, 4-25 cm, glabrous or sparsely to loosely hairy. Leaves 2-10 cm; lower stipules 2-4 mm, whitish hyaline, high connate behind stem, glabrous, upper ones 4-6(-10) mm, shortly connate or free from each other, hairy; petiole short, like rachis hairy or subglabrous; leaflets in 6-10 pairs, narrowly elliptic, 4-18 × 1-4.5 mm, abaxially loosely hairy, adaxially glabrous or sparsely hairy, apex rounded to retuse or subacute. Racemes rather densely 5-15-flowered; peduncle 1.5-11 cm, hairy like stem; bracts mem­branous to partly greenish, 3-7 mm, white and black hairy. Ca­lyx tubular, 7-11 mm, loosely to densely covered with subap­pressed to nearly spreading straight or curly white and black hairs; teeth 3-5 mm. Petals purplish to bluish lilac; standard ovate to rhombic-ovate, 15-22 × 5.5-8.5 mm, apex emarginate; wings 15-18.5 mm; keel 11.5-14 mm. Legumes subsessile, erect, ovoid to narrowly ellipsoid, 7-10 mm, 2.8-4.5 mm high and wide, keeled ventrally, widely and deeply grooved dorsally, acuminate, 2-locular; valves densely silky villous with straight to curly white hairs up to 1-2 mm.

Meadows, steppes, often in saline or sandy soils, from the plains up to 3200 m. NW Xinjiang [Kazakhstan, Russia (Siberia); North America].


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