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

298. Astragalus efoliolatus Handel-Mazzetti, Oesterr. Bot. Z. 85: 215. 1936.

单叶黄耆 dan ye huang qi

Plants acaulescent, covered with mostly medifixed white hairs 1(-1.5) mm. Leaves sessile, simple; stipules 4-6 mm, nearly free from petiole, often high vaginate-connate behind stem, glabrous or sparsely hairy, at margins often with basifixed hairs; leaf blade linear, 10-50 × ca. 1 mm, flat or folded, both surfaces loosely to rather densely appressed hairy. Racemes ses­sile or with a short, hairy peduncle, loosely up to 8-flowered; bracts 1-2 mm, sparsely hairy, at margins with basifixed hairs. Calyx ca. 5 mm, loosely to rather densely appressed hairy; teeth ca. 2.5 mm. Petals red-purple or violet; standard oblong-pan­durate, ca. 8 × 3 mm, without distinct claw, distinctly con­stricted in middle, apex emarginate; wings ca. 7 mm; keel ca. 6 mm. Legumes (immature) sessile, linear-oblong, with a short beak, densely white hairy.

● Gansu, Nei Mongol, Ningxia, Shaanxi.


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