格爾木黃耆檢視原始碼討論檢視歷史
| 格爾木黃耆 |
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中文學名:格爾木黃耆 拉丁學名:Astragalus golmuensis Y. C. Ho in Bull. 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:疏花組 |
格爾木黃耆（gé ěr mù huáng qí，學名：Astragalus golmuensis Y. C. Ho in Bull.）為豆科黃芪屬的植物，是中國的特有植物。分布在中國大陸的青海等地，生長於海拔4,100米至4,500米的地區，多生于山地。 [1]
格爾木黃耆形態特徵
植株 多年生草本，根直伸，頸部常分叉。
莖 莖直立或上升，高25-35厘米。被稍開展的白色短柔毛，上部並混生黑色柔毛。
葉 羽狀複葉有11-19片小葉，長3.5-6厘米；葉柄長0.5-2厘米；托葉離生或僅基部連合，寬三角狀卵形，長3-4毫米，下面疏被白色柔毛或混生黑色毛；小葉卵形或長卵形，長6-12毫米，寬3-5毫米，先端鈍圓或微凹，基部圓形，具短柄，兩面均被白色短伏貼柔毛。
格爾木黃耆花果
總狀花序生10-20花，呈頭狀，花序軸長1.5-2.5厘米；總花梗比葉長近1倍；苞片披針形，白色，膜質，長3-4毫米，無毛或下面近上部散生黑色短柔毛；花梗極短，連同花序軸密被黑色短柔毛；花萼鍾狀，長約4毫米，被黑色短伏貼柔毛，萼齒披針形，長約1.5毫米。
花冠紫紅色，旗瓣長圓狀倒卵形，長9-10毫米，先端微凹，基部漸狹成瓣柄，翼瓣長8-9毫米，瓣片寬卵形，先端鈍，寬達3毫米，基部具短耳，瓣柄長約2毫米，龍骨瓣明顯比翼瓣短，長5-6毫米，瓣片半卵形，先端深紫色，瓣柄長約1.5毫米；子房卵形，無毛，近無柄。
花期6月，未見成熟果實。 [2]
Astragalus golmunensis var. paucipilus Y. H. Wu.
Plants 25-40 cm tall, covered with mostly spreading hairs 0.1-0.3 mm. Stems ascending to erect, sparsely to loosely white hairy, below nodes also black hairy. Leaves 3.5-6 cm; stipules 4-5 mm, lower ones distinctly to high connate behind stem, upper ones amplexicaul but free from each other, all mostly white ciliate; petiole short, like rachis loosely predominantly white hairy; leaflets of lower leaves in 4-6 pairs, mostly flat, elliptic, 4-8 × 2-4.5 mm, apex rounded to slightly emarginate, those of upper leaves in 6-9 pairs, narrowly elliptic, 8-12 × 3-4 mm, mostly folded, apex obtuse, all abaxially loosely to rather densely and adaxially loosely covered with appressed to sub-appressed white hairs. Racemes ovoid to oblong, many flow-ered; peduncle 8-10 cm, loosely to rather densely covered in basal part with predominantly white and in upper part with pre-dominantly black hairs; bracts 3-3.5 mm, sparsely black hairy. Calyx ca. 4 mm, loosely to rather densely covered with subap-pressed to ascending black hairs; teeth unequal, 1-1.5 mm. Pet-als violet; standard ovate, 8-9 × ca. 5 mm; wings ca. 7 mm; keel ca. 5 mm. Ovary with a stipe ca. 1 mm, glabrous. Legumes unknown.
格爾木黃耆生長環境
生長於海拔4100-4500米的山地。[3]