莲山黄耆

莲山黄耆

原图链接 来自植物智

中文学名:莲山黄耆 拉丁学名:Astragalus leansanicus Ulbr. 界:植物界 门:被子植物门 Angiospermae 纲:双子叶植物纲 Dicotyledoneae 亚 纲:原始花被亚纲 Archichlamydeae 目:蔷薇目 Rosales 亚 目:蔷薇亚目 Rosineae 科:豆科 Leguminosae 亚 科:蝶形花亚科 Papilionoideae 族:山羊豆族 TRIB. Galegeae 属:黄耆属 Astragalus 亚 属:裂萼亚属 Subgen. Cercidothrix 种:莲山黄耆

莲山黄耆（lián shān huáng qí，学名：Astragalus leansanicus Ulbr.）为豆科黄耆属下的一个种。产陕西、甘肃（南部）、四川（剑阁一巫溪）。生于海拔1000-2200米之间河滩地及田埂上。

目录

莲山黄耆形态特征

多年生草本，高20-40厘米。 茎丛生，多分枝，有条棱，疏被白色毛。

羽状复叶有9-17片小叶，长4-5厘米，具短叶柄；托叶基部合生，膜质，三角形渐尖，长3-7毫米，无毛；小叶狭椭圆形或狭披针形，长5-10毫米，宽1.5-4毫米，先端钝或稍尖，基部宽楔形，上面无毛或疏被毛，下面疏被白色粗毛，无柄或近无柄。

原图链接 来自植物智

总状花序生6-15花，排列紧密；总花梗与叶等长或稍长，疏被白色毛；苞片膜质，卵形，被白色毛，边绿具黑色或白色毛；花萼钟状管形，长7-8毫米，疏被白色或黑色毛，萼齿钻形，长为萼筒的1/3；

原图链接 来自植物智

花冠淡红色或蓝紫色，旗瓣长12-15毫米，宽椭圆形，先端微凹，基部稍狭，瓣柄不明显，翼瓣较旗瓣短，瓣片先端微凹，较瓣柄稍长，龙骨瓣较翼瓣短，瓣片半椭圆形，较瓣柄稍长；子房被疏毛，无柄或几无柄，含多数胚珠。

荚果细圆柱形，长约3厘米，略弯曲，假2室，疏被粗毛或近无毛。

种子肾形，橄榄色。 花期5-6月，果期6-9月 。

Astragalus leansanicus Ulbr. in Bot. Jahrb. 36 (Beibl. 82): 62. 1905; Simps. in Not. Roy. Bot. Gard. Edinb. 8: 261. 1915; Pet. -Stib. in Acta Hort. Gothob. 12: 62. 1937-1938; 中国主要植物图说·豆科387. 图374. 1955; S. B. Ho in Bull. Bot. Res. 3 (1): 43. 1983. ——A. srevenianus auct. non DC.: Ulbr. op. cit. 63. 1905.

Plants up to 40 cm tall, covered with appressed, mostly ± medifixed, in vegetative parts only white hairs up to 1 mm. Stems several to numerous, very sparsely to loosely hairy. Leaves 3-6 cm; stipules 5-7 mm, very shortly adnate to petiole, high vaginate-connate behind stem, glabrous or ciliate; petiole 0.5-1 cm, like rachis loosely hairy; leaflets in 5-8 pairs, ± nar-rowly elliptic, 5-10(-15) × 1.5-4(-6) mm, abaxially sparsely to loosely hairy, adaxially glabrous or with few hairs, apex obtuse to emarginate. Racemes rather densely 6-15-flowered; pedun-cle 6-10 cm, sparsely white hairy; bracts 2-4 mm, sparsely ciliate with subbasifixed to basifixed white and black hairs. Ca-lyx 5-6 mm, sparsely to loosely covered with strongly asym-metrically to nearly symmetrically bifurcate black hairs 0.3-1 mm and with mostly fewer and slightly longer, strongly asym-metrically bifurcate white hairs up to 1.2 mm; teeth 1-2 mm. Petals purple; standard obovate, ca. 14 × 5-6 mm, apex emar-ginate; wings 12-13 mm; keel ca. 10 mm. Legumes sessile, erect, linear, straight or very slightly curved, 25-30 mm, ca. 2 mm high and wide, with a straight beak 1-2 mm, 2-locular; valves sparsely covered with appressed white hairs 0.5-1.2 mm.

● 1000-2200 m. Gansu, Shaanxi, Shanxi.

莲山黄耆生长环境

生长于海拔1000-2200米之间河滩地及田埂上。

莲山黄耆分布范围

产自陕西、甘肃（南部）、四川（剑阁一巫溪）。