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

384. Astragalus yechengensis Podlech & L. R. Xu, Novon. 17: 236. 2007.

叶城黄耆 ye cheng huang qi

Plants 25-35 cm tall. Stems several, densely covered with medifixed, appressed, white hairs 0.3-0.6 mm, with some black hairs mixed in, especially toward nodes. Leaves 3-7 cm; stip­ules 3-4 mm, free from petiole, high connate behind stem, loosely white and black hairy, partly glabrescent with age; petiole 0.4-1.5 cm, with rachis hairy like stem; leaflets in 5-8 pairs, 4-7 × 1.5-3 mm, abaxially sparsely to loosely covered with appressed white hairs 0.4-0.8 mm, adaxially glabrous. Racemes ca. 3 cm, densely 8-10-flowered; peduncle 5-18 cm, sparsely to very sparsely hairy like stem; bracts 3-4 mm, with strongly asymmetrically bifurcate to basifixed white and black hairs. Calyx at anthesis narrowly ellipsoid, ca. 11 mm, loosely covered with subappressed, symmetrically to strongly asym­metrically bifurcate, flexuous, black hairs 0.4-1.2 mm and with fewer, strongly asymmetrically bifurcate to basifixed, white hairs 1-1.5 mm; teeth ca. 1 mm. Petals probably white with violet-tipped keel or pale violet; standard narrowly obovate, 19-20 × ca. 7 mm, apex retuse; wings 16-17 mm; keel 14-15 mm. Ovary with a stipe 1.5-2 mm, white and black hairy. Leg­umes unknown.

● Xinjiang (Kashi Diqu).


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