草珠黄耆查看源代码讨论查看历史
| 草珠黄耆 |
|
中文学名:草珠黄耆 拉丁学名:Astragalus capillipes Fisch. ex Bunge. 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:原始花被亚纲 目:蔷薇目 亚 目:蔷薇亚目 科:豆科 亚 科:蝶形花亚科 族:山羊豆族 黄耆亚族 属:黄耆属 亚 属:黄耆亚属 组:假草木樨组 |
草珠黄耆（cǎo zhū huáng qí，学名：Astragalus capillipes）是豆科黄芪属的植物，为中国的特有植物。产内蒙古、河北、山西及陕西北部。生于河谷沙地、向阳山坡及路旁草地。原苏联有分布。 [1]
草珠黄耆形态特征
多年生草本，高30-60厘米。 茎上升或近直立，无毛。
奇数羽状复叶，通常具5-7(稀3-11)小叶；托叶三角形，基部彼此稍连合；小叶卵形、长卵形或倒卵形，长8-18毫米，宽4-10毫米，一般顶小叶稍大，基部近圆形或稍狭，具短柄，先端近截形、近圆形或微凹，表面无毛，背面生白色伏毛。
总状花序腋生，比叶长；花小，白色或带粉紫(红)色；苞小，三角状，比花梗短，萼斜钟状，被褐色或白色短毛，萼齿短，三角状，约为萼筒长的y/4(1/3)；
旗瓣倒心形或广倒卵形，长5.5-7毫米，顶端微凹，基部具短爪，翼瓣长圆形，与旗瓣近等长，顶端为不均等的2裂，基部有圆耳和细长爪，龙骨瓣较短，亦具耳及爪；子房无毛。
荚果2室，近球形或卵状球形，长(4) 5-6毫米，无毛，具隆起的脉。 花期7-9月，果期(8)9-10月。[2]
Astragalus capillipes Fisch. ex Bunge in Mem. Acad. Sci. St. Petersb. VII. 15 (1): 21. 1869; Franch. in Nouv. Arch. Mus. Paris 5: 237. 1883; Forb. et Hemsl. in Journ. Linn. Soc. Bot. 23: 165. 1887; Nakai et al. in Rep. First. Sci. Exped. Manch. sect. IV. 4: 26. 1935; Pet. -Stib. in Acta Hort. Gothob. 12: 30. 1937-1938; Boriss. in Kom. Fl. URSS 12: 89. 1946; 中国主要植物图说·豆科395. 图385. 1955; 中国高等植物图鉴2: 421. 1972; 东北草本植物志5: 92. 图版40 (7). 1976; 内蒙古植物志3: 191. 图版97 (7). 1977.
Plants 40-50 cm tall, sparsely furnished with appressed white and black hairs 0.1-0.2 mm. Stems erect, 35-40 cm, strongly branched, glabrous. Leaves 2-5 cm; stipules membra-nous, from widely triangular base somewhat abruptly subulate-acuminate, 2-3 mm, nearly free from each other, glabrous; petiole 0.5-1 cm, like rachis slender, glabrous; leaflets in (1 or)2 or 3 pairs, narrowly elliptic, 5-20 × 2.5-8 mm, abaxially glabrous or to loosely covered with ± appressed white hairs, adaxially glabrous, apex rounded to retuse. Racemes 3-14(-20) cm, loosely many flowered; peduncle 2-9 cm, subglabrous or sparsely to loosely covered with very short, subappressed to as-cending, mainly black hairs; bracts 0.5-2 mm, glabrous or with a few black hairs. Calyx 2.5-3 mm, tube subglabrous or sparsely black hairy; teeth all close together at lower side, 0.1-0.5 mm, densely black hairy on outer and inner sides. Petals white, cream, orange, or red; standard suborbicular, ca. 6 × 4 mm, apex emarginate; wings ca. 6 mm; keel ca. 5 mm. Leg-umes with a stipe 0.5-1.5 mm, obovoid, 5-6 mm, 4-5 mm wide, slightly keeled ventrally, deeply grooved dorsally, rounded at apex, with a slender, persistent style, 2-locular; valves thin, cross-wrinkled, glabrous.
● 300-2000 m. Hebei, Nei Mongol, Ningxia, Shaanxi, Shanxi.
草珠黄耆生长环境
生于河谷沙地、向阳山坡及路旁草地。[3]
草珠黄耆分布范围
原苏联有分布。