川上短柄草Brachypodium kawakamii Hayata
川上短柄草Brachypodium kawakamii Hayata
7.川上短柄草（禾本科图说）图版44: 4
Brachypodium kawakamii Hayata in Bot. Mag. Tokyo 2: 51. 1907;中国主要植物图说·禾本科281, 图228. 1959;台湾植物志5: 1978.
多年生，秆密集丛生，高15-25厘米，基部斜卧，具分枝。叶鞘无毛；叶舌长约0.5毫米；叶片长3-5厘米，宽1毫米，内卷狭窄，无毛。花序退化仅具1-2小穗；小穗长15-25毫米，含5-9花；小穗轴节间长约1.5毫米，贴生细毛；颖被短毛，第一颖长b-10毫米，具5-7脉，第二颖长10-13毫米，具7-9脉；外稃被柔毛，长10-12毫米，具明显的7脉，脉间有横脉，基盘无毛或具短毛；芒细短，长3-7毫米；内稃顶端截平稍凹，脊具纤毛；花药长3毫米；子房顶端具毛。花果期7-11月。
产台湾。生于高山草坡，海拔3300米。模式标本采自台湾新高山。
《Flora of China》 Vol. 22 (2006)
Brachypodium kawakamii Hayata
川上短柄草 chuan shang duan bing cao
Perennial. Culms densely tufted, very slender, wiry, 10–30 cm tall, fasciculately branched, many-noded. Leaf sheaths smooth, glabrous; leaf blades convolute, needle-like, stiff, 5–9 cm, 1–2 mm wide, abaxial surface glabrous, adaxial surface minutely pubescent with scattered longer hairs; ligule 0.5–1 mm. Raceme composed of 1–3 fertile spikelets with 1 or 2 vestigial spikelets below them. Spikelets 2.5–3 cm, subterete, florets 5–9; glumes glabrous or pubescent, lower glume narrowly lanceolate, 6–10 mm, 5–7-veined, apex acute, upper glume lanceolate, 10–13 mm, 7–9-veined, apex with a short hard mucro; lemmas lanceolate, 10–12 mm, densely pubescent, prominently 7-veined; awn 3–7 mm. Anthers ca. 3 mm. Fl. and fr. Jul–Nov.
* Exposed rocky mountainsides; ca. 3000 m. Taiwan.
别名：川上氏短柄草;
科名：禾本科 Gramineae
属名：短柄草属 Brachypodium
7.川上短柄草（禾本科图说）图版44: 4
Brachypodium kawakamii Hayata in Bot. Mag. Tokyo 2: 51. 1907;中国主要植物图说·禾本科281, 图228. 1959;台湾植物志5: 1978.
多年生，秆密集丛生，高15-25厘米，基部斜卧，具分枝。叶鞘无毛；叶舌长约0.5毫米；叶片长3-5厘米，宽1毫米，内卷狭窄，无毛。花序退化仅具1-2小穗；小穗长15-25毫米，含5-9花；小穗轴节间长约1.5毫米，贴生细毛；颖被短毛，第一颖长b-10毫米，具5-7脉，第二颖长10-13毫米，具7-9脉；外稃被柔毛，长10-12毫米，具明显的7脉，脉间有横脉，基盘无毛或具短毛；芒细短，长3-7毫米；内稃顶端截平稍凹，脊具纤毛；花药长3毫米；子房顶端具毛。花果期7-11月。
产台湾。生于高山草坡，海拔3300米。模式标本采自台湾新高山。
《Flora of China》 Vol. 22 (2006)
Brachypodium kawakamii Hayata
川上短柄草 chuan shang duan bing cao
Perennial. Culms densely tufted, very slender, wiry, 10–30 cm tall, fasciculately branched, many-noded. Leaf sheaths smooth, glabrous; leaf blades convolute, needle-like, stiff, 5–9 cm, 1–2 mm wide, abaxial surface glabrous, adaxial surface minutely pubescent with scattered longer hairs; ligule 0.5–1 mm. Raceme composed of 1–3 fertile spikelets with 1 or 2 vestigial spikelets below them. Spikelets 2.5–3 cm, subterete, florets 5–9; glumes glabrous or pubescent, lower glume narrowly lanceolate, 6–10 mm, 5–7-veined, apex acute, upper glume lanceolate, 10–13 mm, 7–9-veined, apex with a short hard mucro; lemmas lanceolate, 10–12 mm, densely pubescent, prominently 7-veined; awn 3–7 mm. Anthers ca. 3 mm. Fl. and fr. Jul–Nov.
* Exposed rocky mountainsides; ca. 3000 m. Taiwan.