新巴黃耆檢視原始碼討論檢視歷史
| 新巴黃耆 |
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中文學名:新巴黃耆 拉丁學名:Astragalus hsinbaticus P.Y. Fu et Y. A. Chen 二名法:Astragalus hsinbaticus 界:植物界 門:被子植物門 綱:雙子葉植物綱 目:薔薇目 科:豆科 屬:黃耆屬 |
新巴黃耆(xīn bā huáng qí，學名 Astragalus hsinbaticus P. Y. Fu et Y. A. Chen，異名：Astragalus quasitesticulatus )，產黑龍江、內蒙古。多生於乾草原沙質土上。 [1]
新巴黃耆形態特徵
多年生、密叢狀草本，高4-15厘米，被開展的白色毛。 根粗壯，木質化。莖極短縮，不明顯。
羽狀複葉有15-31片小葉，長4-15厘米；葉柄較葉軸短；托葉卵狀披針形，長7-10 毫米，基部與葉柄貼生，被白色長柔毛；小葉橢圓形或倒卵形，長7-15毫米，寬3-7毫米，基部近圓形或寬楔形，先端稍尖或鈍圓，稀微凹，兩面被開展的白色長毛。
花腋生，密集於葉叢基部，無梗；苞片披針形，長5-7毫米；花萼管狀，長11-15毫米，密被白色開展的長毛，萼齒線形，長為萼筒的1/4或1/3；
花冠白帶淡黃色，旗瓣長圓形，長20-28毫米，中部縊縮，先端微凹或鈍圓，基部收狹成瓣柄，翼瓣較旗瓣稍短，瓣片狹長圓形，與瓣柄等長，龍骨瓣較翼瓣短，瓣柄較瓣片長一倍；子房狹長圓形、密被白色長柔毛。
莢果卵形或卵狀長圓形，稍膨脹，長10-14毫米，先端銳尖或漸尖，密被白色長柔毛，假2室或近假2室。 花期6-7月，果期7-8月。 [2]
可作牧草。
Astragalus hsinbaticus P. Y. Fu et Y. A. Chen in Fl. Pl. Herb. Chin. Bor. -Or. 5: 103, 175. pl. 46. 1976; 內蒙古植物志 3: 205. 圖版104. 1977; S. B. Ho in Bull. Bot. Res. 3 (1): 57. 1983. ——A. quasi testinculatus Bar. et Chu in 東北植物檢索表176. 1959. nom. seminud.
Plants 4-15 cm tall, covered with mostly ascending to spreading, bifurcate, only white hairs. Leaves 8-18 cm; stipules 7-10 mm, adnate to petiole for ca. 2 mm, sparsely to loosely furnished with strongly asymmetrically bifurcate, subappressed hairs up to 2 mm, at margins with basifixed hairs; petiole 3-5 cm, like rachis loosely to rather densely covered with flexuous, asymmetrically to symmetrically bifurcate hairs 1-2(-2.5) mm; leaflets in 10-12 pairs, elliptic to obovate, 7-15 × 3-8 mm, both surfaces loosely to rather densely covered with ascending, ± medifixed hairs. Bracts ca. 5 mm, sparsely hairy. Flowers crowded at base of leaves. Calyx 11-15 mm, densely covered with flexuous, ± medifixed hairs 1-1.5 mm; teeth 2.5-5 mm. Petals whitish; standard narrowly obovate, 22-28 × ca. 6 mm, slightly constricted below middle, apex slightly retuse; wings 21-23 mm; keel 15-16 mm. Legumes 10-14 mm, ca. 5 mm high, slightly compressed laterally, shortly acuminate, 2-locu-lar; valves densely villous, with spreading, asymmetrically bi-furcate hairs ca. 2 mm.
Heilongjiang, Nei Mongol [Mongolia].
新巴黃耆生長環境
多生於乾草原沙質土上。[3]
新巴黃耆分布範圍
新巴黃耆主要價值
可作牧草。