黑穗薹草生长环境

生长于高山冻原上。

黑穗薹草(原亚种)

根状茎短。秆密丛生，高15-65厘米，三棱形，上部稍粗糙，顶端稍向下倾斜，基部叶鞘无叶片，紫红色，稍网状分裂。叶短于秆，宽3-5毫米，稍粗糙。苞片最下部的1-2枚叶状，无鞘，上部的刚毛状或鳞片状。小穗3-5个，接近，顶生小穗雌雄顺序，倒卵形或长圆状倒卵形。侧生小穗雌性，长圆形，长1-1.5厘米，宽约5-6毫米;下部2个具长柄，稍下垂。雌花鳞片卵形至狭卵形，顶端稍急尖至渐尖，褐色，黑褐色至紫褐色，背部中脉色淡。果囊与鳞片几等长或稍短或稍长，椭圆形或卵形，长3-3.5毫米，淡褐色，顶端深褐色或带紫褐色，无脉，无毛，基部圆形，顶端急缩成圆柱状的短喙，喙口浅2齿裂。小坚果疏松地包于果囊之下半部，倒卵形，三棱形，长1.5-1.7毫米;花柱基部不增粗，柱头3个。

产自吉林;分布朝鲜、日本、俄罗斯及欧洲。

急尖薹草组Sect. Acutae Fries

白鳞薹草组Sect. Albae Aschers. et Graebner.

异囊薹草组Sect. Anomalae Carey

黑穗薹草组Sect. Atratae Kunth

细秆薹草组Sect. Capillares Aschers. et Graebn.

头穗薹草组Sect. Capituligerae Kukenth

薹草组Sect. Carex

密花薹草组Sect. Confertiflorae Franch.

隐穗薹草组Sect. Cryptostachyae Franch.

瘦果薹草组Sect. Debiles Carey

美穗薹草组Sect. Decorae (Kukenth.) Ohwi

指状薹草组Sect. Digitatae Fries

异株薹草组Sect. Dioicae (Tuckerm.) Pax

溪水薹草组Sect. Forficulae Franch. ex Raymond

冻原薹草组Sect. Frigidae Fries ex Kukenth.

米柱薹草组Sect. Glaucaeformes Ohwi

细柄薹草组Sect. Gracilis Tuckerm.

短喙薹草组Sect. Grallatoriae Kukenth.

膜囊薹草组Sect. Hymenochlaenae Drejer

匏囊薹草组Sect. Lageniformes (Ohwi) Nelmes

黄囊薹草组Sect. Lamprochlaenae Drejer

疏花薹草组Sect. Laxiflorae Kunth

湿生薹草组Sect. Limosae Tuckerm.

灰帽薹草组Sect. Mitratae Kukenth.

柔果薹草组Sect. Molliculae Ohwi

玉簪薹草组Sect. Montanae Fries

硬毛果薹草组Sect. Occlusae C. B. Clarke

尖苞薹草组Sect. Orthocerates Koch

沼生薹草组Sect. Paludosae Fries

少花薹草组Sect. Paniceae Tuckerm.

胀囊薹草组Sect. Physocarpae Drejer

帚状薹草组Sect. Praelongae (Kukenth.) Nelmes

似莎薹草组Sect. Pseudo-cypereae Tuckerm.

根穗薹草组Sect. Radicales (Kukenth.) Nelmes

单穗薹草组Sect. Rarae C. B. Clarke

根足薹草组Sect. Rhizopodae Ohwi

菱形果薹草组Sect. Rhomboidales Kukenth.

石薹草组Sect. Rupestres Tuckerm.

离穗薹草组Sect. Secalinae O. F. Lang

宽叶薹草组Sect. Siderostictae Franch.

隐果薹草组Sect. Temneris (Rafin.) V. Krecz.

糙果薹草组Sect. Trachychlaenae Drejer

图们薹草组Sect. Tuminenses Y. L. Chang et Y. L. Yang