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

369. Astragalus macrostephanus (S. B. Ho) Podlech & L. R. Xu, Novon. 14: 217. 2004.

霍城黄耆 huo cheng huang qi

Astragalus iliensis Bunge var. macrostephanus S. B. Ho, Bull. Bot. Res., Harbin 3(1): 68. 1983.

Plants ca. 35 cm tall, covered with medifixed, appressed, white hairs. Stems of current year up to 30 cm, very densely covered with hairs 0.3-0.6 mm. Leaves 8-12 cm; stipules 2-4 mm, lower ones distinctly connate behind stem, upper ones mostly free, sparsely to loosely hairy, at margins with strongly asymmetrically bifurcate to basifixed hairs; petiole 0.5-1 cm, like rachis stout, at base up to 1.5 mm thick, hairy like stem; leaflets in 3 pairs, 12-25 × 3-5 mm, abaxially loosely to rather densely with somewhat shorter hairs, adaxially loosely covered with hairs 0.6-0.8 mm. Racemes 5-12 cm, very remotely 10-12-flowered; peduncle 6-10 cm, hairy like stem; bracts 1-1.5 mm, sparsely hairy. Calyx 5-6 mm, rather densely covered with hairs 0.3-0.4 mm; teeth ca. 1 mm. Standard widely elliptic, ca. 13 × 5 mm, below middle somewhat abruptly contracted into claw longer than limb, apex emarginate; wings ca. 12 mm; keel ca. 10 mm. Legumes 10-12 mm, 4-5 mm high and wide, with a curved beak ca. 1 mm; valves densely villous with subbasi­fixed, ± spreading, tangled, soft hairs 2-3 mm, mostly sitting on depressed tubercles.

● Xinjiang.


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