檢視白枝黄耆的原始碼

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|[[File:白枝黄耆1.jpg|缩略图|居中|250px|[http://img1.iplant.cn/imgf/l/1225945 原图链接] [http://www.iplant.cn/info/%E7%99%BD%E6%9E%9D%E9%BB%84%E8%80%86?t=z 来自植物智]]]

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中文学名:白枝黄耆

拉丁学名:Astragalus 

leucocladus Bunge 

别 称:白枝黄芪 

界:植物界

门:被子植物门

纲:双子叶植物纲

目:豆目

科:[[豆科]]

属:[[黄芪属]]

种:白枝黄耆

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'''白枝黄耆'''（bái zhī huáng qí，学名：'''Astragalus leucocladus''' Bunge）是[[豆科]][[黄芪属]]的植物。老枝深褐色，幼枝细弱，密被灰白色伏贴毛。小叶狭椭圆形或线状长圆形，总状花序生10余朵花，排列紧密，近球形，荚果长圆形，密被开展的白色长毛和少量黑色毛。花期6月，果期7-8月。分布于[[天山]]以及中国大陆的[[新疆]]等地，生长于海拔1,300米的地区，多生在山坡等地。
<ref>[http://www.iplant.cn/info/%B0%D7%D6%A6%BB%C6%EA%C8 白枝黄耆], 植物智, 2020-01-18</ref>

==白枝黄耆形态特征==

低矮灌木，高30-50厘米。老枝深褐色，幼枝细弱，密被灰白色伏贴毛。

羽状复叶有9-13小叶，长4-6厘米，近无柄；叶轴被灰白色伏贴毛；托叶三角状披针形，基部与叶柄贴生，被白、黑色伏贴毛；小叶狭椭圆形或线状长圆形，长13-22毫米，宽3-5毫米，先端渐尖或钝圆，有小芒尖，基部略宽，上面散生白色伏贴毛，下面毛较密；小叶柄极短。

总状花序生10余朵花，排列紧密，近球形，直径达2-4厘米；总花梗生于上部叶腋，长为叶的1-2倍，被灰白色毛或紧接花序处混生很少黑色伏贴毛；苞片狭线形，渐尖，被白、黑色长毛；

花萼初期膨大，上部带紫色，长10-13毫米（果期可达15毫米），被较密的开展长毛和少量半开展的黑毛，萼齿丝状，长为萼筒的1/3，被较多的黑毛；

花冠粉红色（干后色），旗瓣长约20毫米，瓣片狭倒卵形，微凹，中部以下微缢缩，下部渐狭成瓣柄，翼瓣较旗瓣稍短，瓣片长圆形，先端微凹，瓣柄比瓣片长1.5-2倍，龙骨瓣较翼瓣稍短，瓣片长约为瓣柄的1/2或1/3；子房无柄，被白色长绵毛。

荚果长圆形，密被开展的白色长毛和少量黑色毛。花期6月，果期7-8月。<ref> 《中国植物志》 第42(1)卷 (1993) >> 328页 PDF >> 白枝黄耆 Astragalus leucocladus</ref>

Astragalus leucocladus Bunge in Bull. Soc. Nat. Moscou 39 (3): 27. 1866; id. in Mem.Acad. Sci. St. Petersb. VII. 11 (16): 136. 1868 et 15 (1): 233. 1869; Boriss. in Kom. Fl. USSR 12: 832. 1946; S. B. Ho in Bull. Bot. Res. 3 (4): 55. 1983.

Plants 30-45 cm tall, densely covered with mostly ± medi-fixed hairs. Stems branched at base, those of current year 9-16 cm, densely covered with white hairs 0.5-0.8 mm, at nodes also with black hairs. Leaves 4-6 cm, subsessile; stipules 4-7 mm, adnate to petiole for up to 1 mm, covered with white and pre-dominantly black hairs; rachis loosely to rather densely hairy like stem; leaflets in 4-6 pairs, 13-22 × 2-4 mm, abaxially loosely and adaxially sparsely covered with appressed white hairs 1-1.5 mm. Racemes short, densely 8-12-flowered; pedun-cle 9-15 cm, rather densely hairy like stem; bracts 4-5 mm, covered with mostly strongly asymmetrically bifurcate to basi-fixed, spreading, black and white hairs ca. 1 mm. Calyx at an-thesis ca. 12 mm, tubular, rather densely covered with mostly strongly asymmetrically bifurcate, ± spreading, white hairs up to 1.5 mm and with shorter, mostly more symmetrically medi-fixed, black hairs; teeth 2-2.5 mm; calyx soon becoming in-flated, at fruiting time ovoid, ca. 15 × 6-7 mm, loosely hairy. Petals yellow; standard obovate, ca. 20 × 6 mm, slightly con-stricted in middle, apex emarginate; wings 17-18 mm, limbs obliquely emarginate; keel 15-16 mm. Legumes included in ca-lyx, ca. 10 mm, ca. 3 mm high (immature), with a slender beak ca. 2 mm, 2-locular; valves densely covered with mostly basi-fixed, spreading, white hairs ca. 2 mm and with much shorter black hairs up to 0.5 mm.

Steppes. Xinjiang [Kazakhstan].

==白枝黄耆生长环境==
生长于海拔1300米的山坡等地。<ref> 白枝黄耆  ．中国自然标本馆[引用日期2019-06-29]</ref>
==白枝黄耆分布范围==
产于[[新疆]][[准噶尔盆地]]南部（[[尼勒克城]]）。[[天山]]东部也有分布。<ref>[http://www.zhiwutong.com/latin/Leguminosae/Astragalus-leucocladus-Bunge.htm 白枝黄耆Astragalus leucocladus Bunge _植物通] 种中文名:白枝黄耆种拉丁名:Astragalus leucocladus Bunge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:产新疆准噶尔盆地南部尼勒克... </ref>
==白枝黄耆参考文献==
白枝黄耆（植物研究）Astragalus leucocladus Bunge in Bull. Soc. Nat. Moscou 39 (3): 27. 1866; id. in Mem.Acad. Sci. St. Petersb. VII. 11 (16): 136. 1868 et 15 (1): 233. 1869; Boriss. in Kom. Fl. USSR 12: 832. 1946; S. B. Ho in Bull. Bot. Res. 3 (4): 55. 1983.

== 参考来源 ==
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[[Category:370 植物學總論]]