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

256. Astragalus huochengensis Podlech & L. R. Xu, Novon. 17: 238. 2007.

金沟河黄耆 jin gou he huang qi

Plants up to 30 cm tall, covered with appressed ± medi­fixed hairs. Stems several, loosely to rather densely covered with white or black and white hairs 0.5-0.7 mm. Leaves 3-8 cm; stipules 3-5 mm, very shortly adnate to petiole, lower ones high connate behind stem, often up to 3/4 of length or higher up, upper ones shortly connate, sparsely to loosely hairy; peti­ole 1-3 cm, with rachis hairy like stem; leaflets in 7-10 pairs, narrowly elliptic, 5-10 × 1.5-2.5 mm, abaxially loosely to rather densely covered with hairs ca. 1 mm, adaxially glabrous, apex obtuse to minutely acuminate. Racemes rather densely 10-15-flowered, elongating in fruit; peduncle 7-11 cm, sparsely to loosely white or black and white hairy like stem; bracts ca. 2 mm, sparsely white and black hairy. Calyx ca. 10 mm, rather densely covered with ± medifixed, subappressed, white and black hairs 0.5-1 mm; teeth 1-3 mm. Petals of lower flowers purple, of upper flowers yellow; standard narrowly rhombic-obovate, 23-24 × ca. 7 mm, apex slightly emarginate; wings ca. 21 mm, limbs obliquely emarginate; keel ca. 19 mm. Legumes (unripe) sessile, erect, linear, slightly curved, at least 25 mm, ca. 2 mm high and wide, with a short, straight beak 1-2 mm, 2-locular; valves densely covered with symmetrically or asym­metrically bifurcate, appressed, white hairs 0.5-0.8 mm.

● Xinjiang.


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