无茎黄耆
无茎黄耆 |
中文学名:无茎黄耆 界:植物界 门:被子植物门 Angiospermae 纲:木兰纲 Magnoliopsida 目:豆目 Fabales 科:豆科(Leguminosae sp.) 族:黄耆亚族 属:黄耆属 Astragalus 种:无茎黄耆 亚 种:蝶型花亚科(Faboideae) 分布区域:产云南西北部、 |
无茎黄耆(wú jīng huáng qí,学名 Astragalus acaulis Baker,异名:Tragacantha acaulis Astragalus pseudoxytropis Astragalus litangensis ),豆科多年生草本植物。产云南西北部、四川西南部和西藏东部。生于海拔4000米左右的高山草地及沙石滩中。 [1]
目录
无茎黄耆形态特征
无茎黄耆 多年生草本。 根粗壮,直伸,直径约1厘米,淡褐色。 茎短缩,被残存的托叶,多分枝,呈垫状,高3-5厘米。
奇数羽状复叶,具21-27片小叶,长5-7厘米,具柄,叶轴常紫红色,散生白色长柔毛;托叶膜质,大部分合生,仅先端分离,卵形或宽卵形,长10-12毫米,宽5-6毫米,边缘疏被白色长柔毛或无毛;
小叶披针形或卵状披针形,长7-9毫米,宽2-4毫米,先端长渐尖,基部近圆形,幼时边缘疏被白色长柔毛,后近无毛,具短柄。
总状花序生2-4花;总花梗极短,长2-3毫米;苞片线形或狭卵形,膜质,长8-10毫米;花梗长2-4毫米,无毛;花萼管状,长8-15毫米,散生白色长柔毛或近无毛,萼齿狭三角形,长约为萼筒的1/2;
花冠淡黄色,旗瓣长20-25毫米,瓣片宽卵形或近圆形,瓣柄与瓣片近等长,翼瓣与旗瓣近等长,瓣片狭长圆形,具短耳,瓣柄长约10毫米,龙骨瓣与翼瓣近等长,瓣片半卵形,最宽处约5毫米,瓣柄长约10毫米;子房线形,无毛,具短柄。
荚果半卵形,膨胀,长35-45厘米,宽1.3-1.6厘米,无毛,假2室。种子10-16枚,圆肾形,长约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; 中国主要植物图说·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)].
无茎黄耆生长环境
生于海拔4000米左右的高山草地及沙石滩中。
无茎黄耆分布范围
无茎黄耆主要价值
参考来源
- ↑ 无茎黄耆, 植物智, 2020-01-18
- ↑ 《中国植物志》 第42(1)卷 (1993) >> 211页 PDF >> 无茎黄耆 Astragalus acaulis
- ↑ 无茎黄耆植物 | 植物百科 2020年3月7日 - 中文学名无茎黄耆门被子植物门 Angiospermae纲木兰纲 Magnoliopsida目豆目 Fabales科豆科(Leguminosae sp.)族黄耆亚族属黄耆属 Astragalus种无茎黄耆亚种蝶型花亚科...