毛穗赖草Leymus paboanus (Claus) Pilger
毛穗赖草Leymus paboanus (Claus) Pilger
3．毛穗赖草（拟）图版4: 7-11
Leymus paboanus (Claus) Pilger in Engl. Bot. Jahrh. 74: 7. 1947. ——Elymus paboanus Claus in Beitr. Pflanzen. Russ. Reich. 8: 170. 1851.——Aneurolepidium paboanum (Claus) Nevski in Kom. Fl. URSS 2: 707. 1934.
多年生，具下伸的根茎。秆单生或少数丛生，基部残留枯黄色、纤维状叶鞘，高45-90厘米，具3-4节，光滑无毛。叶鞘光滑无毛；叶舌长约0.5毫米；叶片长10-30厘米，宽4-7毫米，扁平或内卷，上面微粗糙，下面光滑。穗状花序直立，长10-18厘米，宽8-13毫米；穗轴较细弱，上部密被柔毛，向下渐平滑，边缘具睫毛，节间长3-6毫米，基部者长达12毫米；小穗2-3枚生于1节，长8-13毫米，含3-5小花；小穗轴节间长约1.5毫米、密被柔毛；颖近锥形，长6-12毫米，与小穗等长或稍长，微被细小刺毛，不覆盖第一外稃的基部，外稃披针形，先端渐尖或具长约1毫米的短芒，背部密被长1-1.5毫米的白色柔毛，脉不显著，腹面可见3-5脉，第一外稃长6-10毫米；内稃与外稃近等长，脊的上半部具睫毛；花药长约3毫米。花、果期6-7月。
产新疆、甘肃、青海。生于平原、河边。蒙古、苏联中亚及西伯利亚也有分布。模式标本采自苏联欧洲部分。
《Flora of China》 Vol. 22 (2006)
Leymus paboanus (Claus) Pilger
毛穗赖草 mao sui lai cao
Culms solitary or tufted, 45–90 cm tall, 3- or 4-noded, smooth, glabrous. Leaf sheath dull yellow at base, smooth, glabrous; ligule ca. 0.5 mm; leaf blade flat or rolled, 10–30 × 0.4–0.7 cm, abaxial surface smooth, adaxial surface scabrous. Spike erect, 6–18 × 0.3–1.3 cm; rachis slender, puberulent or basally smooth, margin ciliate; internodes 3–6 mm. Spikelets 2 or 3 per node, 0.8–1.3 cm, with 3–5 florets, viviparous or not; rachilla ca. 1.5 mm, densely pubescent. Glumes not covering base of first lemma, subulate, 6–12 mm, equaling spikelet, slightly hirsutulous. Lemma lanceolate, obscurely 3–5-veined, puberulent, apex mucronate or acuminate; first lemma 6–10 mm. Palea equaling or slightly longer than lemma. Anthers ca. 0.3 mm. Fl. and fr. Jun–Jul.
Forest understories, grassy places, river banks; ca. 2900 m. Gansu, Ningxia, Qinghai, Xinjiang [Kazakhstan, Kyrgyzstan, Mongolia, Russia, Turkmenistan, Uzbekistan; SW Asia, Europe].
别名：乌斯图-黑雅嘎;通克;
科名：禾本科 Gramineae
属名：赖草属 Leymus
3．毛穗赖草（拟）图版4: 7-11
Leymus paboanus (Claus) Pilger in Engl. Bot. Jahrh. 74: 7. 1947. ——Elymus paboanus Claus in Beitr. Pflanzen. Russ. Reich. 8: 170. 1851.——Aneurolepidium paboanum (Claus) Nevski in Kom. Fl. URSS 2: 707. 1934.
多年生，具下伸的根茎。秆单生或少数丛生，基部残留枯黄色、纤维状叶鞘，高45-90厘米，具3-4节，光滑无毛。叶鞘光滑无毛；叶舌长约0.5毫米；叶片长10-30厘米，宽4-7毫米，扁平或内卷，上面微粗糙，下面光滑。穗状花序直立，长10-18厘米，宽8-13毫米；穗轴较细弱，上部密被柔毛，向下渐平滑，边缘具睫毛，节间长3-6毫米，基部者长达12毫米；小穗2-3枚生于1节，长8-13毫米，含3-5小花；小穗轴节间长约1.5毫米、密被柔毛；颖近锥形，长6-12毫米，与小穗等长或稍长，微被细小刺毛，不覆盖第一外稃的基部，外稃披针形，先端渐尖或具长约1毫米的短芒，背部密被长1-1.5毫米的白色柔毛，脉不显著，腹面可见3-5脉，第一外稃长6-10毫米；内稃与外稃近等长，脊的上半部具睫毛；花药长约3毫米。花、果期6-7月。
产新疆、甘肃、青海。生于平原、河边。蒙古、苏联中亚及西伯利亚也有分布。模式标本采自苏联欧洲部分。
《Flora of China》 Vol. 22 (2006)
Leymus paboanus (Claus) Pilger
毛穗赖草 mao sui lai cao
Culms solitary or tufted, 45–90 cm tall, 3- or 4-noded, smooth, glabrous. Leaf sheath dull yellow at base, smooth, glabrous; ligule ca. 0.5 mm; leaf blade flat or rolled, 10–30 × 0.4–0.7 cm, abaxial surface smooth, adaxial surface scabrous. Spike erect, 6–18 × 0.3–1.3 cm; rachis slender, puberulent or basally smooth, margin ciliate; internodes 3–6 mm. Spikelets 2 or 3 per node, 0.8–1.3 cm, with 3–5 florets, viviparous or not; rachilla ca. 1.5 mm, densely pubescent. Glumes not covering base of first lemma, subulate, 6–12 mm, equaling spikelet, slightly hirsutulous. Lemma lanceolate, obscurely 3–5-veined, puberulent, apex mucronate or acuminate; first lemma 6–10 mm. Palea equaling or slightly longer than lemma. Anthers ca. 0.3 mm. Fl. and fr. Jun–Jul.
Forest understories, grassy places, river banks; ca. 2900 m. Gansu, Ningxia, Qinghai, Xinjiang [Kazakhstan, Kyrgyzstan, Mongolia, Russia, Turkmenistan, Uzbekistan; SW Asia, Europe].