沙地黄耆 sha di huang qi

Astragalus sadiensis Podlech, L. R. Xu & Zhao Y. Chang.

Plants 20-25 cm tall, only white hairy. Stems few, densely covered with medifixed, appressed hairs 0.5-0.8 mm. Leaves 4-5 cm; stipules ca. 3 mm, only those of lowest leaves shortly connate behind stem, others free from each other, all rather densely appressed hairy; petiole 1-1.5 cm, with rachis densely hairy like stem, at insertion of leaflets and leaflet petiole with ± spreading, strongly to extremely asymmetrically bifurcate hairs ca. 0.8 mm; leaflets in 4 pairs, narrowly elliptic, 7-12 × 1.5-3 mm, both surfaces loosely to rather densely covered with medi­fixed, appressed hairs 0.6-1 mm, apex acute to shortly acumi­nate. Racemes loosely 2-10-flowered; peduncle 3-5 cm, hairy like stem; bracts 2-3 mm, loosely hairy. Calyx ca. 10 mm, loosely to rather densely covered with subappressed, ± medi­fixed, white hairs 0.5-0.8 mm, at margins of teeth also with strongly asymmetrically bifurcate hairs; teeth unequal, 2-3 mm. Petals yellow; standard ca. 15 × 5 mm, apex emarginate; wings ca. 12 mm; keel ca. 12 mm. Legumes (unripe) ca. 25 mm, ca. 2 mm high, shortly acuminate; valves loosely covered with medi­fixed, appressed hairs 0.5-0.8 mm.

● Xinjiang.

The holotype of Astragalus sadiensis Podlech et al., conserved at PE, belongs to the same gathering as that of A. shadiensis L. R. Xu et al., conserved at LZD. The name Astragalus shadiensis has priority (published mid-January 2007) over A. sadiensis (published 20 June 2007).