中甸黃耆檢視原始碼討論檢視歷史
中甸黃耆 |
中文學名:中甸黃耆 拉丁學名:Astragalus forrestii Simps. 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:華黃耆亞屬 組:黑毛組 |
中甸黃耆(zhōng diàn huáng qí,學名:Astragalus forrestii Simps.)是豆科黃芪屬的植物,是中國的特有植物。分布於中國大陸的雲南等地,生長於海拔3,000米至3,200米的地區,常生長在山坡草地。 [1]
中甸黃耆形態特徵
多年生草本。 莖直立,高50-150厘米,具條棱,散生白色混有黑色短柔毛,幼時毛較密。
奇數羽狀複葉,具33-43片小葉,長5-14厘米;葉柄長0.5-1.5厘米,向上逐漸變短;托葉近膜質,離生,三角狀卵形,長8-12毫米,寬4-6毫米,下面散生白色柔毛;小葉長圓形,長5-20毫米,寬2-6毫米,先端鈍圓或微凹,具小尖頭,基部近圓形,上面近無毛,下面被白色伏貼柔毛,具短柄。
總狀花序生多數花,密集,花序軸長2-8厘米,花後延伸;總花梗腋生,較葉短;苞片線形,長4-10毫米,下面被白色或黑色柔毛;花梗較短;
花萼鍾狀,長4-5毫米,外面被白色或黑色短伏貼柔毛,萼齒披針形,長1-1.5毫米;小苞片2,宿存;
花冠黃色,旗瓣倒卵形,長9-10毫米,寬約5毫米,先端微凹,基部漸狹成瓣柄,翼瓣較旗瓣稍短,瓣片長圓形,寬約2毫米,具短耳,瓣柄與瓣片近等長,龍骨瓣較翼瓣稍短,瓣片半卵形,具短耳;子房無毛,具短柄。
莢果半卵形,膨脹,長10-12毫米,近假2室,果頸較宿萼稍短。
種子6-8顆,腎形,栗褐色,長約2毫米。 花果期7-8月。 [2]
Astragalus forrestii Simps. in Not. Roy. Bot. Gard. Edinb. 8: 124. 1915; Pet. -Stib. in Acta Hort. Gotbob. 12: 32. 1937-1938; 中國主要植物圖說·豆科380. 1955.
Plants 45-70 cm tall, with mostly ± curly hairs 0.2-0.5(-0.8) mm. Stems several, branched, to 6 mm thick, loosely to densely covered with very short black and somewhat longer white hairs. Leaves 8-15 cm, subsessile; stipules 8-12 mm, sparsely to loosely white and black hairy; rachis loosely to rather densely mostly black hairy; leaflets in 15-19 pairs, nar-rowly elliptic, 8-23 × 3-8 mm, abaxially loosely appressed mostly white hairy, adaxially glabrous. Racemes 4-7 cm, very densely many flowered, later elongating up to 10 cm; peduncle 3-8 cm, ± densely black hairy; bracts linear-acute, 7-10 mm, predominantly black hairy. Bracteoles sometimes present, line-ar, 2-3 mm. Calyx 5-6 mm, mostly glabrous at base, toward teeth with a few black hairs or all over ± loosely predominantly black hairy; teeth unequal, 1-2.5 mm. Petals green-yellow; standard rhombic-obovate, 10-12 × 6-7 mm, apex emarginate; wings and keel 9-10 mm. Legumes with a stipe up to 2 mm, 10-12 mm, inflated, 2-locular, glabrous.
● 2700-3300 m. Sichuan, W Yunnan.
中甸黃耆生長環境
生長於海拔3000-3200米間的山坡草地。 [3]