本組概述
小穗直立，少有下垂，頂生小穗通常雌雄順序，少有為雄性；側生的雌性，少有頂端具雄花。苞片葉狀或剛毛狀。雌花鱗片大部分為暗紫色。果囊膜質或革質，橢圓形、卵形或倒卵形，黃綠色或淡褐色，常具乳突或細點，無毛，具短喙，喙口全緣或具2齒。花柱基部不膨大，柱頭3個，少有2個。組模式種：黑穗薹草Carex atrata L.
本組我國有24種6亞種5變種。
下級分類
圓穗薹草Carex angarae Steud. 具芒薹草Carex aristulifera P. C. Li 黑穗薹草Carex atrata L. 短鱗薹草Carex augustinowiczii Meinsh. ex Korsh. 高加索薹草Carex caucasica Stev. 長芒薹草Carex gmelinii Hook. et Arn. 點葉薹草Carex hancockiana Maxim. 紅原薹草Carex hongyuanensis Y. C. Tang et S. Y. Liang 淡色薹草Carex infuscata Nees 甘肅薹草Carex kansuensis Nelmes 膨囊薹草Carex lehmanii Drejer 黑花薹草Carex melanantha C. A. Mey. | 黑鱗薹草Carex melanocephala Turcz. 烏拉草Carex meyeriana Kunth 岷縣薹草Carex minxianensis S. Y. Liang 青藏薹草Carex moorcroftii Falc. ex Boott 暗色薹草Carex obscura Nees 白頭山薹草Carex peiktusanii Kom. 多雄薹草Carex polymascula P. C. Li 沙生薹草Carex praeclara Nelmes 川滇薹草Carex schneideri Nelmes 紫喙薹草Carex serreana Hand.-Mazz. 長鱗薹草Carex tarumensis Franch. |
相關類群
急尖薹草組Sect. Acutae Fries 白鱗薹草組Sect. Albae Aschers. et Graebner. 異囊薹草組Sect. Anomalae Carey 黑穗薹草組Sect. Atratae Kunth 細稈薹草組Sect. Capillares Aschers. et Graebn. 頭穗薹草組Sect. Capituligerae Kukenth 薹草組Sect. Carex 密花薹草組Sect. Confertiflorae Franch. 隱穗薹草組Sect. Cryptostachyae Franch. 瘦果薹草組Sect. Debiles Carey 美穗薹草組Sect. Decorae (Kukenth.) Ohwi 指狀薹草組Sect. Digitatae Fries 異株薹草組Sect. Dioicae (Tuckerm.) Pax 溪水薹草組Sect. Forficulae Franch. ex Raymond 凍原薹草組Sect. Frigidae Fries ex Kukenth. 米柱薹草組Sect. Glaucaeformes Ohwi 細柄薹草組Sect. Gracilis Tuckerm. 短喙薹草組Sect. Grallatoriae Kukenth. 膜囊薹草組Sect. Hymenochlaenae Drejer 匏囊薹草組Sect. Lageniformes (Ohwi) Nelmes 黃囊薹草組Sect. Lamprochlaenae Drejer | 疏花薹草組Sect. Laxiflorae Kunth 濕生薹草組Sect. Limosae Tuckerm. 灰帽薹草組Sect. Mitratae Kukenth. 柔果薹草組Sect. Molliculae Ohwi 玉簪薹草組Sect. Montanae Fries 硬毛果薹草組Sect. Occlusae C. B. Clarke 尖苞薹草組Sect. Orthocerates Koch 沼生薹草組Sect. Paludosae Fries 少花薹草組Sect. Paniceae Tuckerm. 脹囊薹草組Sect. Physocarpae Drejer 帚狀薹草組Sect. Praelongae (Kukenth.) Nelmes 似莎薹草組Sect. Pseudo-cypereae Tuckerm. 根穗薹草組Sect. Radicales (Kukenth.) Nelmes 單穗薹草組Sect. Rarae C. B. Clarke 根足薹草組Sect. Rhizopodae Ohwi 菱形果薹草組Sect. Rhomboidales Kukenth. 石薹草組Sect. Rupestres Tuckerm. 離穗薹草組Sect. Secalinae O. F. Lang 寬葉薹草組Sect. Siderostictae Franch. 隱果薹草組Sect. Temneris (Rafin.) V. Krecz. 糙果薹草組Sect. Trachychlaenae Drejer |
