大花窄翼黄耆查看源代码讨论查看历史
大花窄翼黄耆 |
中文学名:大花窄翼黄耆 拉丁学名:Astragalus degensis Ulbr. var. rockianus Pet.-Stib. 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:原始花被亚纲 目:蔷薇目 亚 目:蔷薇亚目 科:豆科 亚 科:蝶形花亚科 族:山羊豆族·黄耆亚族 属:黄耆属 亚 属:黄耆亚属 组:膜荚组 种:窄翼黄耆 中国植物志:42(1):136 |
大花窄翼黄耆(dà huā zhǎi yì huáng qí),变种花长13-14毫米,萼齿与萼筒近等长而与原变种不同。 \r\n\r\n产云南(丽江、德钦、中甸)。生境同原变种。模式标本采自云南丽江。 [1]
大花窄翼黄耆形态特征
多年生草本。根粗壮,直伸,直径可达2.5厘米。茎直立,高50-100厘米,具条纹;被稍开展的白色柔毛或混生黑色毛。
羽状复叶有17-25片小叶,长5-12厘米,具短柄;托叶草质,离生,线状披针形,长6-10毫米,具缘毛;小叶长圆形或长圆状披针形,长5-18毫米,宽3-6毫米,先端钝,具凸尖头,基部钝圆或宽楔形,上面被伏贴柔毛,下面毛较密。
总状花序腋生,生多数花,稍稀疏;总花梗比叶长;苞片线形,长4-6毫米,小苞片缺;花梗长3-4毫米,连同花序轴被黑色柔毛或近下部混生白色毛;花萼钟状,长4-5毫米,外面被黑色伏贴柔毛,萼齿钻形,长1-2毫米;
花冠淡紫色,旗瓣狭倒卵形,反折,长10-12毫米,先端钝,基部渐狭,翼瓣长8-10毫米,瓣片线状长圆形,宽约1毫米,基部具短耳,瓣柄长约5毫米,龙骨瓣与旗瓣近等长,瓣片半卵形,最宽处约3毫米,瓣柄长约5毫米;
子房被黑毛或混生白色柔毛,具柄。
荚果梭状卵形,长15-18毫米,宽4-6毫米,两端尖,密被黑毛或混生白色柔毛,果颈长4-6毫米;种子2-4颗。花期7-8月,果熟期8-9月。[2]
Astragalus degensis var. rockianus E. Peter; A. grubovii S. H. Cheng ex P. C. Li (1989), not Sanchir (1974); A. guan-shuanus P. C. Li; A. voburus Y. H. Xu & Q. R. Liu.
Plants 40-50(-100) cm tall, with appressed hairs 0.3-0.6(-1) mm. Stem sparsely to loosely covered with white and black or predominantly black hairs, glabrescent with age. Leaves 6-12 cm; stipules linear-subulate, 6-10 mm, spreading to reflexed, black ciliate; rachis sparsely to loosely covered with mostly black hairs; leaflets in 7-15 pairs, narrowly elliptic, 8-20(-30) × 3-8(-12) mm, abaxially ± light green and loosely appressed white hairy, adaxially dark green and glabrous, apex acute to slightly retuse with a distinct cusp ca. 0.5 mm. Ra-cemes ca. 3 cm, densely many flowered, at fruiting time elon-gated and up to 6(-12) cm; rachis loosely to densely black hairy; peduncle 5-20 cm, loosely to rather densely black hairy, glabrescent with age; bracts whitish, linear-subulate, 5-7 mm, black ciliate. Calyx shortly tubular, 6-9 mm, loosely covered with white and black or only black hairs; teeth subulate, 3-5 mm. Petals yellow to greenish yellow or purplish, yellow when dry; standard oblong to elliptic, 11-13(-15) × 4-7 mm, rounded at apex; wings 10-11(-13) mm; keel 11-12(-14) mm. Legumes with a stipe 4-7 mm, erect or spreading, ellipsoid, compressed laterally, 1.3-1.7 cm, 6-8 mm high and 2.5-3 mm wide, sharply keeled ventrally, keeled to narrowly rounded dorsally, shortly acuminate at both ends; valves dirty brownish, sparsely to rather densely covered with subappressed black and white or only black hairs.
大花窄翼黄耆(变种)(植物研究室汇刊)
大花窄翼黄耆 本变种花长13-14毫米,萼齿与萼筒近等长而与原变种不同。
参看:窄翼黄耆(原变种)
大花窄翼黄耆产地生境
产云南(丽江、德钦、中甸)。生境同原变种。模式标本采自云南丽江。 [3]
参考来源
- ↑ 大花窄翼黄耆, 植物智, 2020-01-18
- ↑ 《中国植物志》 第42(1)卷 (1993) >> 135页 PDF >> 窄翼黄耆 Astragalus degensis
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