剑叶莎查看源代码讨论查看历史
剑叶莎 |
界: 植物界 门: 被子植物门 纲: 单子叶植物纲 目: 莎草目 科: 莎草科 属: 剑叶莎属 种: 剑叶莎 |
剑叶莎(jiàn yè suō),学名 Machaerina ensigera (Hance) T. Koyama,俗名:剑叶克拉莎,异名:Cladium ensigerum ,多年生草本。根状茎短,须根粗。 [1]
形态特征
秆粗状,高约2米,扁,有节。叶基生和秆生,二列套叠,革质,剑形,两侧压扁,长达150厘米,宽18-22毫米,无中脉,具多数纵脉和小横脉,平滑。苞片叶状,具苞鞘。
圆锥花序大型,开展,由数枚多次复出的聚伞花序组成,长40-60厘米;小穗2-4枚簇生成头状,长约5毫米,有2-4朵花,仅下面1-2朵花结实;鳞片褐色,长方形,对折,下部的长约4毫米,上部的渐小,被微柔毛,边缘膜质,具缘毛,背部具龙骨状突起;
下位刚毛4-9条,褐色,短于花柱;雄蕊3,花丝扁;花柱由上而下渐增大,中部以下具白色毡毛;柱头3或2。小坚果倒卵形,有三锐棱,长约1毫米,褐色,具喙。
FOC >> Vol.23 (2010) >> Cyperaceae >> Machaerina | eFloras.org Link 2.Machaerina ensigera (Hance) T. Koyama Bot. Mag. (Tokyo). 69: 63. 1956.剑叶莎 jian ye suo
Cladium ensigerum Hance, J. Bot. 23: 80. 1885.Rhizomes horizontal, 4.5-6.8 mm thick. Culms flattened. Leaves basal; leaf blade ensiform, 3.8-50 × 0.7-2.5 cm, rigid, many veined, margin purple, finely scabrous, and denticulate.
Inflorescences paniculate, narrow, usually 3-branched. Spikelets purple, ca. 11.3 × 3.5 mm, 2- or 3-flowered. Glumes ovate-lanceolate, apex acuminate.
Nutlet subdrupaceous, ellipsoid, 3-furrowed; persistent style base thickened. Fl. and fr. Apr-Aug.
生长环境分布范围
● Swamps, lake margins. Hong Kong. No specimen has been seen by the present authors.No specimen has been seen by the present authors.
参考文献
- ↑ 剑叶莎(duō huā jiàn yè suō)”,植物通,2019-06-29