草珠黃耆
| 草珠黃耆 |
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中文學名:草珠黃耆 拉丁學名:Astragalus capillipes Fisch. ex Bunge. 界:植物界 門:被子植物門 綱:雙子葉植物綱 亞 綱:原始花被亞綱 目:薔薇目 亞 目:薔薇亞目 科:豆科 亞 科:蝶形花亞科 族:山羊豆族 黃耆亞族 屬:黃耆屬 亞 屬:黃耆亞屬 組:假草木樨組 |
草珠黃耆（cǎo zhū huáng qí，學名：Astragalus capillipes）是豆科黃芪屬的植物，為中國的特有植物。產內蒙古、河北、山西及陝西北部。生於河谷沙地、向陽山坡及路旁草地。原蘇聯有分布。 [1]
目錄
草珠黃耆形態特徵
多年生草本，高30-60厘米。 莖上升或近直立，無毛。
奇數羽狀複葉，通常具5-7(稀3-11)小葉；托葉三角形，基部彼此稍連合；小葉卵形、長卵形或倒卵形，長8-18毫米，寬4-10毫米，一般頂小葉稍大，基部近圓形或稍狹，具短柄，先端近截形、近圓形或微凹，表面無毛，背面生白色伏毛。
總狀花序腋生，比葉長；花小，白色或帶粉紫(紅)色；苞小，三角狀，比花梗短，萼斜鍾狀，被褐色或白色短毛，萼齒短，三角狀，約為萼筒長的y/4(1/3)；
旗瓣倒心形或廣倒卵形，長5.5-7毫米，頂端微凹，基部具短爪，翼瓣長圓形，與旗瓣近等長，頂端為不均等的2裂，基部有圓耳和細長爪，龍骨瓣較短，亦具耳及爪；子房無毛。
莢果2室，近球形或卵狀球形，長(4) 5-6毫米，無毛，具隆起的脈。 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; 中國主要植物圖說·豆科395. 圖385. 1955; 中國高等植物圖鑑2: 421. 1972; 東北草本植物志5: 92. 圖版40 (7). 1976; 內蒙古植物志3: 191. 圖版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.
草珠黃耆生長環境
生於河谷沙地、向陽山坡及路旁草地。[3]