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{| class="wikitable" align="right" |- | style="background: #008080" align= center| '''<big>兔尾黄耆</big> ''' |- |[[File:兔尾黄耆3.jpg|缩略图|居中|250px|[http://2019img.cvh.ac.cn/imgcvh/l/WUK/WUK0480400.jpg 原图链接] [http://2019.cvh.ac.cn/spm/WUK/WUK0480400 来自植物标本馆]]] |- | style="background: #008080" align= center| |- | align= light| 中文学名:兔尾黄耆 界:[[植物界]] 属:[[黄耆属]] 分布区域:草原及山坡草地 高:5-11厘米 |} '''兔尾黄耆'''(tù wěi huáng qí,学名 '''Astragalus laguroides''' Pall.,异名:Astragalus gobialtaicus Astragalus lagurus Astragalus lupulinus var. laguroides ),多年生草本,高5-11厘米。茎极短缩,不明显。产[[内蒙古]]中部。生于草原及山坡草地。模式标本采自[[巴干毛塔苏木]]。 <ref>[http://www.iplant.cn/info/%CD%C3%CE%B2%BB%C6%EA%C8 兔尾黄耆], 植物智, 2020-01-18</ref> ==兔尾黄耆形态特征== </p> 兔尾黄耆兔尾黄耆,多年生草本,高5-11厘米。茎极短缩,不明显。羽状复叶有5-13片小叶,长5-9厘米;叶柄与叶轴近等长,被白色伏贴的粗毛;托叶卵状披针形,长4-5毫米,被白色半开展的粗毛;小叶椭圆形、倒卵形或披针形,长8-13米。 [[File:兔尾黄耆1.jpg|缩略图|左|200px|[http://2019img.cvh.ac.cn/imgcvh/l/HIMC/0017105.jpg 原图链接] [http://2019.cvh.ac.cn/spm/HIMC/0017105 来自植物标本馆]]] 总状花序卵状长圆形,生多数花,排列紧密;总花梗与叶等长、稍长或稍短,被白色半伏贴毛;苞片线形,长2-3毫米,疏被白色长毛;花萼初期管状,后稍膨大成长卵形,长9-10毫米,被白色开展的长毛,萼齿钻形,长2-3毫米; [[File:兔尾黄耆2.jpg|缩略图|左|200px|[http://2019img.cvh.ac.cn/imgcvh/l/HIMC/0017106.jpg 原图链接] [http://2019.cvh.ac.cn/spm/HIMC/0017106 来自植物标本馆]]] 花冠淡紫色,旗瓣长14-16毫米,瓣片狭长圆形,先端钝圆稀微凹,下部渐狭成瓣柄,翼瓣较旗瓣稍短,瓣片狭长圆形,先端全缘,长约为瓣柄的1/2,龙骨瓣较翼瓣短,长10-12毫米,瓣片较瓣柄短;子房近无柄,被白色绵毛。 荚果卵圆形,长7-8毫米,被白色开展毛,1室。 花期5-6月,果期6-7月。本变种与原变种不同处在于:花较小,旗瓣长不超过16毫米;花萼上无开展的黑毛;小叶不超过7对。 </p> Astragalus laguroides Pall. Reise, Russ. Reich. 3: 750. 1776; DC. Prodr. 2: 300. 1825; Ledeb. Fl. Ross. 1: 646. 1842; Bunge in Mem. Acad. Sci. St. Petersb. VII. 15 (1): 236. 1869; Boriss. in Kom. Fl. USSR 12: 855. 1946. Astragalus gobi-altaicus N. Ulziykhutag; A. lagurus Pal-las; A. lupulinus Pallas var. laguroides (Pallas) Basilevskaja. Plants 5-16(-20) cm tall, acaulescent or nearly so, vege-tative parts covered with medifixed, appressed, white hairs 0.8-1.1 mm. Stems, if present, up to 1.5 cm, densely hairy. Leaves 3-14 cm; stipules 6-7(-10) mm, adnate to petiole for 2(-3) mm, hairy; petiole 1.5-5 cm, like rachis densely to rather densely hairy; leaflets in 3-5(-8) pairs, in basal leaves often only in 1 or 2 pairs, 8-25 × 3-8 mm, both surfaces rather densely hairy, apex acute. Racemes ovoid, 2-6 cm, densely many flowered; peduncle 2-11 cm, rather densely covered with symmetrically or asymmetrically bifurcate, appressed to subap-pressed, white hairs 0.4-1 mm, toward raceme sometimes also with some black hairs mixed in; bracts 5-10 mm, covered with asymmetrically bifurcate, at margins with basifixed, white hairs. Calyx at anthesis tubular, soon becoming inflated ovoid, 11-14 mm, loosely to rather densely covered with asymmetrically bi-furcate to basifixed, tangled, spreading, white hairs 1-2 mm, with some black hairs mixed in; teeth 3-6 mm. Petals violet; standard narrowly obovate, 17-20 × 6-7 mm, mostly slightly constricted in middle, apex emarginate; wings 14-17 mm; keel 13-15 mm. Legumes included in calyx, sessile, oblong, 7-8 mm, with a hooked beak ca. 1 mm, 1-locular; valves covered with spreading white hairs. Xinjiang [Mongolia, Russia (Siberia)]. ==兔尾黄耆生长环境== 生长于草原及山坡草地。<ref>《中国植物志》 第42(1)卷 (1993) >> 340页 PDF >> 兔尾状黄耆 Astragalus laguroides </ref> ==兔尾黄耆分布范围== 分布于[[内蒙古]]中部。模式标本采自[[巴干毛塔苏木]]。<ref>[http://www.zhiwutong.com/latin/Leguminosae/Astragalus-laguroides-Pall.htm 兔尾黄耆Astragalus laguroides Pall. _植物通] 种中文名:兔尾黄耆种拉丁名:Astragalus laguroides Pall.科中文名:豆科科拉丁名:Leguminosae属中文名:黄耆属属拉丁名:Astragalus国外分布:产贝加尔湖,谢连加流及... </ref> == 参考来源 == {{reflist}} [[Category:370 植物學總論]]
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