二柱薹草亚属
二柱薹草亚属(学名:Subgen. Vignea (P. Beauv. ex Lestib.) Kukenth.)为植物分类学下莎草科薹草属的亚属，本亚属有16组、48种7变种、1变种。
- 中文名称 二柱薹草亚属
- 拉丁学名 Subgen. Vignea (P. Beauv. ex Lestib.) Kukenth.
- 界 植物界
- 门 被子植物门
- 纲 单子叶植物纲
亚属概述
二柱薹草亚属 Subgen. 3. Vignea (P. Beauv. ex Lestib.) Kukenth.
二柱薹草亚属图集 Subgen. 3. Vignea (P. Beauv. ex Lestib.) Kukenth. in Engl., Pflanzenr. Heft 38 (IV. 20): 111, 1909--Vignea P. Beauv. ex Lestib. Essai Cyper. 22, 1819 (genus!) pro parte
亚属模式种:C. arenaria L.
根状茎短、或匍匐。花单性;雌雄同株、稀异株;小穗通常多数，两性，雄雌顺序(即上部为雄花、下部为雌花)或雌雄顺序，稀部分小穗均为雄花或雌花，卵形、长圆形或圆形，无柄，集生成穗状、圆锥状或头状花序。枝先出叶缺如。果囊平凸状或双凸状，稀膨胀成球形或椭圆形。小坚果平凸状或双凸状;柱头2、稀3个。
本亚属有16组、48种7变种、1变种。
下级分类
| 组 | 种 |
|---|---|
| 白山薹草组Sect. Canescentes (Fries) Christ | 白山薹草Carex curta Good. 二裂薹草Carex lachenalii Schkuhr 间穗薹草Carex loliacea L. 细花薹草Carex tenuiflora Wahlenb. |
| 草莎薹组Sect. Cyperoideae Koch. | 莎薹草Carex bohemica Schreb. |
| 二籽薹草组Sect. Dispermae Ohwi | 二籽薹草Carex disperma Dew |
| 类稗薹草组Sect. Echinochloaemorphae Y. L. Chang ex S. Y. Liang | 类稗薹草Carex echinochloaeformis Y. L. Chang et Y. L. Yang |
| 烈味薹草组Sect. Foetidae Tuckerm. ex Kukenth. | 寸草Carex duriuscula C. A. Mey. 无脉薹草Carex enervis C. A. Mey. 无味薹草Carex pseudofoetida Kukenth. 密穗薹草Carex pycnostachya Kar. et Kir. 走茎薹草Carex reptabunda (Trautv.) V. Krecz. 萨嘎薹草Carex sagaensis Y. C. Yang |
| 穹隆薹草组Sect. Gibbae Kukenth. | 穹隆薹草Carex gibba Wahlenb. |
| 二柱薹草组Sect. Holarrhenae (Doell) Pax | 库地薹草Carex curaica Kunth 带岭薹草Carex dailingensis Y. L. Chou 胶东薹草Carex jiaodongensis Y. M. Zhang et X. D. Chen 落叶松薹草Carex laricetorum Y. L. Chou 二柱薹草Carex lithophila Turcz. 帽儿山薹草Carex maorshanica Y. L. Chou 疣囊薹草Carex pallida C. A. Mey. 陇县薹草Carex paracuraica Wang et Y. L. Chang 单性薹草Carex unisexualis C. B. Clarke 山林薹草Carex yamatsutana Ohwi[ |
| 筛草组Sect. Macrocephalae Kukenth. | 筛草Carex kobomugi Ohwi |
| 圆锥薹草组Sect. Paniculatae (Carey) Christ | 圆锥薹草Carex diandra Schrank |
| 多花薹草组Sect. Phleoideae (Meinsh.) Egorova | 溪生薹草Carex fluviatilis Boott 假尖嘴薹草Carex laevissima Nakai 尖嘴薹草Carex leiorhyncha C. A. Mey. 翼果薹草Carex neurocarpa Maxim. 云雾薹草Carex nubigena D. Don 短苞薹草Carex paxii Kukenth |
| 囊果薹草组Sect. Physodeae Christ ex Kukenth | 囊果薹草Carex physodes M.-Bieb. |
| 高秆薹草组Sect. Planatae Akiyama | 高秆薹草Carex alta Boott 缘毛薹草Carex craspedotricha Nelmes 卵果薹草Carex maackii Maxim. |
| 薮薹草组Sect. Remotae (Aschers.) C. B. Clarke | 卵穗薹草Carex ovatispiculata Y. L. Chang ex S. Y. Liang 丝引薹草Carex remotiuscula Wahlenb. 书带薹草Carex rochebruni Franch. et Savat. |
| 星穗薹草组Sect. Stellulatae (Kunth) Christ. | 小星穗薹草Carex angustior Mack. 星穗薹草Carex omiana Franch. et Sav. |
| 高节薹草组Sect. Thomsonianae Y. L. Chang ex S. Y. Liang | 球结薹草Carex thompsonii Franch. 高节薹草Carex thomsonii Boott |
| 海绵基薹草组Sect. Vulpinae (Carey) Christ | 无芒薹草Carex earistata Wang et Y. L. Chang ex S. Y. Liang 捷克薹草Carex otruba Podl. 海绵基薹草Carex stipata Muhl. ex Willd. 狐狸薹草Carex vulpina L. |