别名：单蕊拂子草;单穗拂子茅;

科名：禾本科 Gramineae

属名：拂子茅属 Calamagrostis

《中国植物志》第9(3)卷227页
  3．单蕊拂子茅（禾本科图说）
  Calamagrostis emodensis Griseb. in Nacher. Ges. Wiss. Goett. 80. 1868; 禾本科图说526.图453. 1959; 中国高等植物图鉴5: 108.图7046. 1976; 秦岭植物志1(1) : 141. 1976.
  秆直立，高100-130厘米，基部径3-4毫米，光滑无毛。叶鞘无毛，短于或下部者长于节间，通常1侧具叶耳；叶舌平截，干膜质，长0.5-2毫米；叶片长25-45厘米，宽5-10毫米，扁平或边缘内卷，粗糙或下面较光滑。圆锥花序开展，软弱下垂，长15-25厘米，分枝细弱，稍粗糙；小穗长5.5-6毫米，淡绿色或苍白微带紫色，具光泽；颖质薄，线状披针形，第一颖长于第二颖约1毫米，具1脉，第二颖具3脉，主脉粗糙；外稃透明膜质，长约2毫米，具不明显的5脉，顶端2深裂达稃体的1/3，自裂齿间伸出1细弱的芒，芒长5-9毫米，稍粗糙，基盘的柔毛约等长于第二颖；内稃稍短于外稃；小穗轴不延伸于内稃之后；雄蕊1，花药长约1毫米。颖果椭圆形，长约1毫米。花果搏膝8-9月。
  产陕西（秦岭南坡）、西藏、四川、云南。生于山坡草地，海拔1900-5000米。印度北部也有分布。模式标本采自印度北部。

《Flora of China》 Vol. 22 (2006)
Calamagrostis emodensis  Grisebach
单蕊拂子茅   dan rui fu zi mao
Calamagrostis garwhalensis Hubbard & Bor.
Perennial, densely tufted, rhizomatous; rhizomes spreading. Culms erect, stout, 1–1.3 m tall, 3–4 mm in diam., smooth or slightly scabrid below panicle. Leaf sheaths with auricle on one side; leaf blades broadly linear, flat, 25–45 cm, 5–20 mm wide, adaxial surface scabrid, abaxial surface smooth, apex finely acuminate; ligule 0.5–3 mm, truncate. Panicle loosely contracted, lanceolate in outline, 15–25 cm, nodding, plumose; branches in whorls, bare at base, slightly scabrid. Spikelets silvery-green or tinged pale purple, 5.5–8 mm; glumes linear-lanceolate, subequal or lower glume slightly longer, keel scabrid, apex subulate; callus hairs 2–3 times length of lemma; lemma ca. 1/2 as long as glumes, 2–2.7 mm, 5-veined, deeply 2-toothed by up to 1/3 its length; awn 5–9 mm, arising between teeth, straight, usually projecting beyond glumes; palea slightly shorter than lemma; rachilla extension absent or rudimentary, glabrous. Stamen 1, anther 0.7–1 mm. Fl. and fr. Aug–Sep.
Grassy slopes in montane regions; 1900–5000 m. Shaanxi, Sichuan, Xizang, Yunnan [Bhutan, N India, Kashmir, N Pakistan].
This is a well-defined species with relatively broad leaf blades, a pale, shining panicle, and a deeply toothed lemma. The floret contains a single plump anther.