科名：禾本科 Gramineae

属名：早熟禾属 Poa

《中国植物志》第9(2)卷189页
  162．大药早熟禾（西北植物学报）
  Poa macroanthera D. F. Cui in Act. Bot. Bor Occ. Sinica 7(2): 100, 图9. 1987; 新疆植物志6: 98, 图版35. 1996.
  多年生，疏丛。秆高40-50厘米，具4-5节，平滑无毛。叶鞘短于其节间，平滑无毛；叶舌长 1.5-3毫米，两侧稍有微刺毛；叶片长6-8厘米，宽1-3毫米，两面及边缘平滑无毛。圆锥花序开展，长8-15厘米；分枝长达8厘米，下部长裸露，小枝先端具1-2小穗；小穗长6-7 (-9)毫米，含3-4（-5)小花，着花稀疏，宽5-7毫米；小穗轴细长，平滑无毛，长2毫米，外露；第一颖长3-5毫米，具3脉，第二颖长4-5毫米；外稃质地薄，5脉明显，第一外稃长5.5毫米，脊中部与边脉1/3以下及间脉基部均生柔毛，基盘具少量绵毛；内稃较外稃短1/4，两脊微糙；花药长3毫米，退化花药长约0.5毫米。花期6-7月。
  产新疆（和静、博克达山马牙山）。生于山谷河旁、林缘亚高山森林草甸，海拔2500-2800米。模式标本采自新疆和静。

《Flora of China》 Vol. 22 (2006)
Poa macroanthera  D. F. Cui
大药早熟禾   da yao zao shu he
Perennials, loosely to densely tufted, without rhizomes; shoots extra- and intravaginal. Culms 40–55 cm tall, rounded, smooth, glabrous, nodes 2–4, 1 or 2 exserted, uppermost at mid-culm. Leaf sheath shorter than internode, smooth, glabrous, 10–11 cm, slightly compressed, uppermost closed for over 1/5–1/4 of length, old basal sheaths persisting, becoming fibrous, overlapping; blade flat or folded, moderately thin, 3–15 cm, uppermost shortest, 1–3 mm wide, surfaces smooth or sparsely scabrid, glabrous; ligule (1–)1.5–3 mm, abaxially smooth or sparsely scabrid, apex obtuse. Panicle open, diffuse, 8–15 cm; branches ascending to spreading, 2–3 per node, slender, smooth throughout or distally scabrid angled, longest to 5 cm with 8 spikelets in distal 1/2; flowers female or perfect. Spikelets elliptic to lanceolate, green or purple, 5.6–7 mm, florets 3 or 4; vivipary absent; rachilla internodes to 2 mm, smooth, glabrous, exposed; glumes lanceolate, smooth or sparsely scabrid on keel, lower glume 3–4 mm, 3-veined, upper glume 3.5–5 mm, 3-veined; lemmas lanceolate, very thinly papery, 4–5.5 mm, purple above veins, apex acuminate, keel villous for 1/2 length, marginal veins to 1/3, intermediate veins prominent, area between them glabrous, above sparsely scabrid; callus weakly webbed, hairs sparse, short; palea keels scabrid, medially pilulose to shortly villous. Anthers 2.5–3 mm. Fl. and fr. Jun–Jul.
* Riversides in ravines, subalpine meadows along forest margins; 2500–3300 m. Xinjiang (Kunlun Shan, Tian Shan).
The placement of this species near Poa smirnowii is controversial. The type, examined by M. V. Olonova, has sheaths open for 1/5–1/4 their length and scabrid-angled panicle branches. This argues against any relationship to P. smirnowii and inclines us to think it might be better placed in P. subg. Stenopoa.