芒剪股颖Agrostis trinii Turcz.
芒剪股颖Agrostis trinii Turcz.
26．芒剪股颖（大兴安岭植物群落）图版61：12-15
Agrostis trinii Turcz. in Bull. Soc. Nat. Mosc. 29. 1: 18. 1856;禾本科图说538.图463: 1959; 中国高等植物图鉴5: 110. 1976. ——Agrostis canina Linn. subsp. trinii (Turcz.) Hult. Kungl. sv. Vet-Akad. Handl. ser. 5. 8. 5 (Circumpol.) : 114. 1962. ——Agrostis coarctata Ehrh. ex Hoffm. subsp. trinii (Turcz.) H. Scholz. Willd. 5. 3: 484. 1969. ——Agrostis vinealis subsp. trinii (Turcz.) Tzvel. Poac. URSS 336. 1976.
多年生，具根头或细弱根状茎。秆稠密丛生，直立，高30-60厘米，直径约1毫米，具3节，平滑。叶鞘一般短于节间，抱茎，平滑；叶舌干膜质，长1.5-2.5毫米，先端平截；叶片线形，长5-8厘米，宽1-1.5毫米，扁平，边缘微内卷，略粗糙。圆锥花序微开展，窄卵形，长7-12厘米，宽2-5厘米，每节具2-5分枝，分枝细瘦，微粗糙；小穗暗紫色，穗梗粗糙；第一颖长2-2.3（2.5)毫米，两颖相等或第一颖稍长0.1-0.3毫米，长圆状披针形，先端渐尖，脊上或上部边缘微粗糙；外稃长2毫米，先端钝，芒从外稃的近基部处着生，长3-3.5毫米，细弱，膝曲，伸出于小穗之外，基盘具长约0.2毫米之毛；内稃微小；花药线形，长达1.2毫米。花果期夏秋季。
产辽宁、吉林、内蒙古。生于海拔1500-1700米的山坡、湿草地上。模式标本采自苏联贝加尔。
《Flora of China》 Vol. 22 (2006)
Agrostis vinealis Schreber
芒剪股颖 mang jian gu ying
Agrostis canina subsp. montana (Hartman) Hartman; A. canina subsp. trinii (Turczaninow) HultΘn; A. canina var. mon-tana Hartman; A. coarctata subsp. trinii (Turczaninow) H. Scholz; A. flaccida subsp. trinii (Turczaninow) T. Koyama; A. flaccida var. trinii (Turczaninow) Ohwi; A. trinii Turczaninow; A. vinealis subsp. trinii (Turczaninow) Tzvelev.
Perennial, tufted, shortly rhizomatous. Culms erect from a geniculate base, 30–60 cm tall, ca. 1 mm in diam., 3-noded. Leaf sheaths smooth; leaf blades narrowly linear, flat or weakly rolled, grayish green, 5–8 cm × 0.5–2 mm, scabrid; ligule 1.5–3 mm, apex obtuse. Panicle lanceolate to narrowly ovate, 7–12 cm; branches 2–5 per node, laxly ascending, slender, moderately scabrid. Spikelets 2–2.5 mm, purple; glumes oblong-lanceolate, subequal, lower slightly longer, keel scabrid or almost smooth on upper glume, apex acuminate; callus hairs ca. 0.2 mm; lemma 2/3 spikelet length, awned from slightly below middle to lower 1/3, or awnless, apex obtuse; awn geniculate, 3–3.5 mm; palea very small. Anthers 1–1.5 mm. Fl. and fr. summer and autumn.
Damp grassy places; 1500–1700 m. Heilongjiang, Jilin, Liaoning, Nei Mongol [Japan, Korea, Mongolia, Pakistan, Russia; America, Europe].
Agrostis vinealis lies at the center of a complex of closely related taxa, including in China A. flaccida and A. turkestanica. Characters separating the taxa are very slight, which has led to differences in opinion as to their taxonomic status. Agrostis vinealis itself is widespread in Eurasia, but other members are usually of more restricted distribution. Agrostis trinii, based on an E Asian element with very scabrid leaf blades, has been reported from NE China. Other characters used to distinguish it are conflicting in the literature, and it seems impossible to maintain it as distinct.
别名：brown bentgrass;芒翦股颖;
科名：禾本科 Gramineae
属名：剪股颖属 Agrostis
26．芒剪股颖（大兴安岭植物群落）图版61：12-15
Agrostis trinii Turcz. in Bull. Soc. Nat. Mosc. 29. 1: 18. 1856;禾本科图说538.图463: 1959; 中国高等植物图鉴5: 110. 1976. ——Agrostis canina Linn. subsp. trinii (Turcz.) Hult. Kungl. sv. Vet-Akad. Handl. ser. 5. 8. 5 (Circumpol.) : 114. 1962. ——Agrostis coarctata Ehrh. ex Hoffm. subsp. trinii (Turcz.) H. Scholz. Willd. 5. 3: 484. 1969. ——Agrostis vinealis subsp. trinii (Turcz.) Tzvel. Poac. URSS 336. 1976.
多年生，具根头或细弱根状茎。秆稠密丛生，直立，高30-60厘米，直径约1毫米，具3节，平滑。叶鞘一般短于节间，抱茎，平滑；叶舌干膜质，长1.5-2.5毫米，先端平截；叶片线形，长5-8厘米，宽1-1.5毫米，扁平，边缘微内卷，略粗糙。圆锥花序微开展，窄卵形，长7-12厘米，宽2-5厘米，每节具2-5分枝，分枝细瘦，微粗糙；小穗暗紫色，穗梗粗糙；第一颖长2-2.3（2.5)毫米，两颖相等或第一颖稍长0.1-0.3毫米，长圆状披针形，先端渐尖，脊上或上部边缘微粗糙；外稃长2毫米，先端钝，芒从外稃的近基部处着生，长3-3.5毫米，细弱，膝曲，伸出于小穗之外，基盘具长约0.2毫米之毛；内稃微小；花药线形，长达1.2毫米。花果期夏秋季。
产辽宁、吉林、内蒙古。生于海拔1500-1700米的山坡、湿草地上。模式标本采自苏联贝加尔。
《Flora of China》 Vol. 22 (2006)
Agrostis vinealis Schreber
芒剪股颖 mang jian gu ying
Agrostis canina subsp. montana (Hartman) Hartman; A. canina subsp. trinii (Turczaninow) HultΘn; A. canina var. mon-tana Hartman; A. coarctata subsp. trinii (Turczaninow) H. Scholz; A. flaccida subsp. trinii (Turczaninow) T. Koyama; A. flaccida var. trinii (Turczaninow) Ohwi; A. trinii Turczaninow; A. vinealis subsp. trinii (Turczaninow) Tzvelev.
Perennial, tufted, shortly rhizomatous. Culms erect from a geniculate base, 30–60 cm tall, ca. 1 mm in diam., 3-noded. Leaf sheaths smooth; leaf blades narrowly linear, flat or weakly rolled, grayish green, 5–8 cm × 0.5–2 mm, scabrid; ligule 1.5–3 mm, apex obtuse. Panicle lanceolate to narrowly ovate, 7–12 cm; branches 2–5 per node, laxly ascending, slender, moderately scabrid. Spikelets 2–2.5 mm, purple; glumes oblong-lanceolate, subequal, lower slightly longer, keel scabrid or almost smooth on upper glume, apex acuminate; callus hairs ca. 0.2 mm; lemma 2/3 spikelet length, awned from slightly below middle to lower 1/3, or awnless, apex obtuse; awn geniculate, 3–3.5 mm; palea very small. Anthers 1–1.5 mm. Fl. and fr. summer and autumn.
Damp grassy places; 1500–1700 m. Heilongjiang, Jilin, Liaoning, Nei Mongol [Japan, Korea, Mongolia, Pakistan, Russia; America, Europe].
Agrostis vinealis lies at the center of a complex of closely related taxa, including in China A. flaccida and A. turkestanica. Characters separating the taxa are very slight, which has led to differences in opinion as to their taxonomic status. Agrostis vinealis itself is widespread in Eurasia, but other members are usually of more restricted distribution. Agrostis trinii, based on an E Asian element with very scabrid leaf blades, has been reported from NE China. Other characters used to distinguish it are conflicting in the literature, and it seems impossible to maintain it as distinct.