栏目

细叶黄耆Astragalus melilotoides Pall. var. tenuis Ledeb.

细叶黄耆Astragalus melilotoides Pall. var. tenuis Ledeb.

别名:细叶黄芪;纳日音-好恩其日;细叶草木犀状黄芪;细叶黄蓍;

科名:豆科 Leguminosae

属名:黄耆属 Astragalus

种中文名:细叶黄耆
种拉丁名:Astragalus melilotoides Pall. var. tenuis Ledeb.
科中文名:豆科
科拉丁名:Leguminosae
属中文名:黄耆属
属拉丁名:Astragalus
国内分布:产长江以北各省区。
国外分布:原苏联,蒙古也有分布
中国植物志:42(1):169

《Flora of China》 Vol. 10 (2010)
129. Astragalus tenuis Turczaninow, Bull. Soc. Imp. Natural-istes Moscou. 15: 768. 1842.
细叶黄耆 xi ye huang qi Astragalus melilotoides Pallas var. tenuis (Turczaninow) Ledebour.
Plants 20-45 cm tall, vegetative parts glabrous or very sparsely furnished with appressed nearly only white hairs 0.05-0.2 mm. Stems erect, 20-25 cm, branched, glabrous or with a few scattered hairs. Leaves 2-8 cm, subsessile or with a petiole up to 0.8 mm; stipules whitish or greenish membranous, 1-3 mm, narrowly triangular or with subulate tip; rachis slender, glabrous or very sparsely hairy; leaflets in 1(or 2) pairs, some-times only 1 terminal leaflet present, linear, 10-30 × 0.5-1.5 mm, abaxially sparsely to rather densely covered with ± ap-pressed to subappressed hairs, adaxially glabrous or sparsely hairy, apex rounded to retuse. Racemes 4-8 cm, loosely many flowered, elongating in fruit; peduncle 4-11 cm, glabrous; bracts 0.5-1 mm, glabrous or with a few hairs. Calyx 1.5-2 mm, loosely covered with appressed white hairs 0.05-0.1 mm; teeth all crowded at lower side, 0.3-0.5 mm. Petals white, cream, yellow, purple, or violet with dark spots; standard orbicular, 4-5.5 × ca. 5 mm, apex emarginate; wings 5-5.5 mm, limbs obliquely emarginate; keel ca. 4.5 mm. Legumes sessile, widely obliquely ellipsoid, 2.5-4 mm, 2-2.5 mm high and ca. 2 mm wide, rounded at apex, 2-locular; valves transversely rugulose, glabrous.Hebei, Nei Mongol [Mongolia, Russia (Siberia)].

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