清凉峰薹草查看源代码讨论查看历史
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中文名称 清凉峰薹草 学名Carex qingliangensis D. M. Weng, H. W. Zhang & S. F. Xu 界 植物界 门 被子植物门 Angiospermae 纲 单子叶植物纲 Monocotyledoneae 目 莎草目 Cyperales 亚科 薹草亚科 Caricoideae 族 薹草族 Cariceale 亚属 薹草亚属 Subgen. Carex 组 急尖薹草组 Sect. Acutae 亚组 坚挺薹草亚组 Subsect. Rigidae |
清凉峰薹草(qīng liáng fēng tái cǎo)，学名:Carex qingliangensis D. M. Weng, H. W. Zhang & S. F. Xu，是单子叶植物纲莎草科薹草属的植物]]，Rhizome short, indurate. Culms tufted, 40-55 cm tall, slender, trigonous, smooth, covered at base by dark brown bladeless sheaths. Leaves shorter or longer than culm, blades 4-7 mm wide, flat, trabeculate, scabrid along distal margins. Involucral bracts setaceous, shorter than subtending spikes, sheath 0.5-2 cm. [1]
形态特征
Rhizome short, indurate. Culms tufted, 40-55 cm tall, slender, trigonous, smooth, covered at base by dark brown bladeless sheaths. Leaves shorter or longer than culm, blades 4-7 mm wide, flat, trabeculate, scabrid along distal margins.
Involucral bracts setaceous, shorter than subtending spikes, sheath 0.5-2 cm. Spikes 4 or 5; terminal spike male, cylindric, clavate, 25-45 mm, with peduncle 1-2.5 cm; lateral spikes female, rather widely spaced, linear-cylindric, 25-40 mm, densely flowered, peduncle 1-2.5 cm, barely exserted from bract sheath.
Female glumes pale green, elliptic-ovate, 3.5-4 mm, costa yellow-green, with a distinct midrib, apex acuminate with a short scabrous awn. Utricles green, slightly longer than glume, oblong-ellipsoid, trigonous, 4-5 mm, sparsely pubescent distally, prominently many veined, base attenuate, not stipitate, apex with a straight beak ca. 1.5 mm, orifice distinctly emarginate.
Nutlet ashy brown, tightly enveloped, oblong-ovoid, 2.5-3 mm, faces concave in proximal half, angles not constricted at middle, base with a short straight stipe, apex gradually contracted into a short cylindric beak; style base slightly thickened; stigmas 3. Fl. and fr. Apr-May.
产地生境
● Forests and roadsides on mountain slopes; 500-1300 m. NW Zhejiang (Lin’an).
薹草属介绍
薹草属多是多年生草本植物，一些种是一年生的。有些薹草属像草坪一样生长非常密集，也有些长的或短的匍匐生长。它们往往有非常茂密多分支的根茎，有些也成群簇生。茎无节，一般多少呈三角形，下部在楞处往往有粗糙的齿。叶细长，端部是尖的，有时会非常锋利。
薹草属一般是雌雄同体的，少数是雌雄异株的。其中不同的种可以分为是单穗的（茎末单穗）、雌花雄花位于同一穗或同一花絮上的（雌花和雄花的形状一样）以及多穗的（雌花串状，雄花穗状）。有些种类的雌花与雄花交杂在同一穗上，有些是分开的。种子被壳完全包围，但是没有像禾本科植物那样与壳长到一起。
薹草属植物生长在泥泞、酸质的草地上。牲畜不能吃它们（因为酸性太高）。它们也可以像芦苇那样生长在浅水中。一些根比较密集的薹草属被用来种在沼泽地上或沙地的斜坡上来稳固这样的斜坡（比如坝或者公路边的斜坡）。[2]
标本鉴定信息
学名 Carex qingliangensis D. M. Weng, H. W. Zhang & S. F. Xu 中文名 薹草 鉴定人 简德重 鉴定时间 20050506
采集信息
采集人 张永飞 采集号 QNSY20043344 采集时间 20050420 采集地 中国 贵州省 海拔 1230 生境 路边 习性 物候期 无花有果