错那黄耆查看源代码讨论查看历史
| 错那黄耆 |
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中文名:错那黄耆 拉丁学名:Astragalus conaensis Podlech & L. R. Xu 门:被子植物门 科:豆科 属:黄耆属 |
错那黄耆(cuò nà huáng qí)，学名Astragalus conaensis Podlech & L. R. Xu ，是豆科、黄耆属植物。分布于西藏自治区西部。 [1]
形态特征
Plants acaulescent to subacaulescent, 2-5 cm tall; hairs subappressed, in vegetative parts white, in inflorescence also black, 0.4-0.5 mm.
Stems or basal leaf-rosettes numerous, stems if present up to 0.5 cm, loosely hairy. Leaves 1-2 cm; stipules 3-4 mm, distinctly connate before petiole, behind stem connate to middle, rather densely hairy;
petiole short, like ra-chis rather densely hairy; leaflets in 3-7 pairs, elliptic, 1-3 × 0.5-1.5 mm, abaxially densely to rather densely hairy, adaxially sparsely to loosely hairy, apex obtuse.
Racemes 2-5-flowered; peduncle 0.3-0.5 cm, white and black hairy; bracts 1.5-2.5 mm, predominantly black hairy. Calyx 4-5 mm, densely to ra-ther densely covered with appressed black hairs 0.1-0.3 mm and with subappressed white hairs 0.6-1 mm;
teeth 2-2.5 mm. Petals deeply violet; standard widely elliptic to suborbicular, ca. 9 × 6 mm; wings ca. 8 mm; keel ca. 8 mm. Ovary with a slender stipe ca. 1 mm, narrowly ellipsoid, white hairy. Leg-umes unknown.
产地生境
● 4600-5200 m. Xizang.