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中文学名:新巴黄耆 拉丁学名:Astragalus hsinbaticus P.Y. Fu et Y. A. Chen 二名法:Astragalus hsinbaticus 界:植物界 门:被子植物门 纲:双子叶植物纲 目:蔷薇目 科:豆科 属:黄耆属 |
新巴黄耆(xīn bā huáng qí，学名 Astragalus hsinbaticus P. Y. Fu et Y. A. Chen，异名：Astragalus quasitesticulatus )，产黑龙江、内蒙古。多生于干草原沙质土上。 [1]
新巴黄耆形态特征
多年生、密丛状草本，高4-15厘米，被开展的白色毛。 根粗壮，木质化。茎极短缩，不明显。
羽状复叶有15-31片小叶，长4-15厘米；叶柄较叶轴短；托叶卵状披针形，长7-10 毫米，基部与叶柄贴生，被白色长柔毛；小叶椭圆形或倒卵形，长7-15毫米，宽3-7毫米，基部近圆形或宽楔形，先端稍尖或钝圆，稀微凹，两面被开展的白色长毛。
花腋生，密集于叶丛基部，无梗；苞片披针形，长5-7毫米；花萼管状，长11-15毫米，密被白色开展的长毛，萼齿线形，长为萼筒的1/4或1/3；
花冠白带淡黄色，旗瓣长圆形，长20-28毫米，中部缢缩，先端微凹或钝圆，基部收狭成瓣柄，翼瓣较旗瓣稍短，瓣片狭长圆形，与瓣柄等长，龙骨瓣较翼瓣短，瓣柄较瓣片长一倍；子房狭长圆形、密被白色长柔毛。
荚果卵形或卵状长圆形，稍膨胀，长10-14毫米，先端锐尖或渐尖，密被白色长柔毛，假2室或近假2室。 花期6-7月，果期7-8月。 [2]
可作牧草。
Astragalus hsinbaticus P. Y. Fu et Y. A. Chen in Fl. Pl. Herb. Chin. Bor. -Or. 5: 103, 175. pl. 46. 1976; 内蒙古植物志 3: 205. 图版104. 1977; S. B. Ho in Bull. Bot. Res. 3 (1): 57. 1983. ——A. quasi testinculatus Bar. et Chu in 东北植物检索表176. 1959. nom. seminud.
Plants 4-15 cm tall, covered with mostly ascending to spreading, bifurcate, only white hairs. Leaves 8-18 cm; stipules 7-10 mm, adnate to petiole for ca. 2 mm, sparsely to loosely furnished with strongly asymmetrically bifurcate, subappressed hairs up to 2 mm, at margins with basifixed hairs; petiole 3-5 cm, like rachis loosely to rather densely covered with flexuous, asymmetrically to symmetrically bifurcate hairs 1-2(-2.5) mm; leaflets in 10-12 pairs, elliptic to obovate, 7-15 × 3-8 mm, both surfaces loosely to rather densely covered with ascending, ± medifixed hairs. Bracts ca. 5 mm, sparsely hairy. Flowers crowded at base of leaves. Calyx 11-15 mm, densely covered with flexuous, ± medifixed hairs 1-1.5 mm; teeth 2.5-5 mm. Petals whitish; standard narrowly obovate, 22-28 × ca. 6 mm, slightly constricted below middle, apex slightly retuse; wings 21-23 mm; keel 15-16 mm. Legumes 10-14 mm, ca. 5 mm high, slightly compressed laterally, shortly acuminate, 2-locu-lar; valves densely villous, with spreading, asymmetrically bi-furcate hairs ca. 2 mm.
Heilongjiang, Nei Mongol [Mongolia].
新巴黄耆生长环境
多生于干草原沙质土上。[3]
新巴黄耆分布范围
新巴黄耆主要价值
可作牧草。