無莖黃耆
無莖黃耆 |
中文學名:無莖黃耆 界:植物界 門:被子植物門 Angiospermae 綱:木蘭綱 Magnoliopsida 目:豆目 Fabales 科:豆科(Leguminosae sp.) 族:黃耆亞族 屬:黃耆屬 Astragalus 種:無莖黃耆 亞 種:蝶型花亞科(Faboideae) 分布區域:產雲南西北部、 |
無莖黃耆(wú jīng huáng qí,學名 Astragalus acaulis Baker,異名:Tragacantha acaulis Astragalus pseudoxytropis Astragalus litangensis ),豆科多年生草本植物。產雲南西北部、四川西南部和西藏東部。生於海拔4000米左右的高山草地及沙石灘中。 [1]
目錄
無莖黃耆形態特徵
無莖黃耆 多年生草本。 根粗壯,直伸,直徑約1厘米,淡褐色。 莖短縮,被殘存的托葉,多分枝,呈墊狀,高3-5厘米。
奇數羽狀複葉,具21-27片小葉,長5-7厘米,具柄,葉軸常紫紅色,散生白色長柔毛;托葉膜質,大部分合生,僅先端分離,卵形或寬卵形,長10-12毫米,寬5-6毫米,邊緣疏被白色長柔毛或無毛;
小葉披針形或卵狀披針形,長7-9毫米,寬2-4毫米,先端長漸尖,基部近圓形,幼時邊緣疏被白色長柔毛,後近無毛,具短柄。
總狀花序生2-4花;總花梗極短,長2-3毫米;苞片線形或狹卵形,膜質,長8-10毫米;花梗長2-4毫米,無毛;花萼管狀,長8-15毫米,散生白色長柔毛或近無毛,萼齒狹三角形,長約為萼筒的1/2;
花冠淡黃色,旗瓣長20-25毫米,瓣片寬卵形或近圓形,瓣柄與瓣片近等長,翼瓣與旗瓣近等長,瓣片狹長圓形,具短耳,瓣柄長約10毫米,龍骨瓣與翼瓣近等長,瓣片半卵形,最寬處約5毫米,瓣柄長約10毫米;子房線形,無毛,具短柄。
莢果半卵形,膨脹,長35-45厘米,寬1.3-1.6厘米,無毛,假2室。種子10-16枚,圓腎形,長約4毫米。 花果期6-8月。 [2]
Astragalus acaulis Baker in Hook. f. Fl. Brit. Ind. 2: 132. 1876; Simps. in Not. Roy. Bot. Gard. Edinb. 8: 260. 1915; Forrest in Not. Roy. Bot. Gard. Edinb. 14: 158. 1924; Pet. -Stib. in Acta Hort. Gothob. 12: 56. 1937-1938; 中國主要植物圖說·豆科375. 1955; 西藏植物志2: 820. 1985.——A. litangensis Bur. et Franch. in Journ. de Bot. 5: 24. 1891. ——A. pseudoxytropis Ulbr. in Fedde Repert. Sp. Nov. Beih. 12: 420. 1922.
Astragalus litangensis Bureau & Franchet; A. pseudoxy-tropis Ulbrich.
Plants up to 15 cm tall, sparsely white hairy or sometimes glabrous or subglabrous. Stems, if present, very short, rarely up to 3 cm, glabrous. Leaves 8-15 cm; stipules whitish membra-nous, free from petiole, at base nearly completely embracing stem but not connate behind it, high connate behind abaxial side of petiole, upper ones 10-12(-15) mm, connate for 1/3-2/3 of their length, lower ones mostly shorter and connate often nearly up to top, all ciliate, rarely sparsely hairy on outer side; petiole 2-6 cm, like rachis glabrous or very sparsely hairy; leaflets in 7-12 pairs, narrowly ovate, 6-8 × 2-3 mm, abaxially glabrous or sparsely hairy at margins and midvein, rarely more densely hairy, adaxially glabrous, apex acute. Racemes subsessile, 2- or 3-flowered; bracts membranous, linear, acute, 10-15 mm, gla-brous or ciliate. Calyx tubular, 11-15 mm, tube glabrous or rarely sparsely hairy; teeth 3-4 mm, sometimes ciliate at margin and apex. Petals pale sulfur-yellow; standard widely obovate, 20-25 × 11-13(-16) mm, apex rounded to slightly emarginate; wings 19-24 mm; keel 19-22 mm. Legumes subsessile, erect, slightly obliquely oblong, 25-50 mm, 10-15 mm high and 3-4 mm wide, narrowly rounded ventrally and dorsally, without beak, nearly completely 2-locular; valves thin but tough, with numerous vertical fine nerves, glabrous.
High alpine regions; 3300-5400 m. Sichuan, Xizang, Yunnan [Bhutan, India (Sikkim)].
無莖黃耆生長環境
生於海拔4000米左右的高山草地及沙石灘中。
無莖黃耆分布範圍
無莖黃耆主要價值
參考來源
- ↑ 無莖黃耆, 植物智, 2020-01-18
- ↑ 《中國植物志》 第42(1)卷 (1993) >> 211頁 PDF >> 無莖黃耆 Astragalus acaulis
- ↑ 無莖黃耆植物 | 植物百科 2020年3月7日 - 中文學名無莖黃耆門被子植物門 Angiospermae綱木蘭綱 Magnoliopsida目豆目 Fabales科豆科(Leguminosae sp.)族黃耆亞族屬黃耆屬 Astragalus種無莖黃耆亞種蝶型花亞科...