糙早熟禾Poa raduliformis Probat.

科名：禾本科 Gramineae

属名：早熟禾属 Poa

《中国植物志》第9(2)卷130页
  59.糙早熟禾 图版24: 21
  Poa raduliformis Probat. in Nov. Sist. Vyssh. Rast. 13:40. 1976. et in Pl. Vasc. 1:282. 1985; Tzvel. in Fed. Poac. URSS 459. 1976.
  多年生，具短根状茎。秆高40-60厘米，径3-4毫米，具3节，顶节约位于秆中部。叶鞘长10-20厘米；平滑无毛；叶舌长约0.5毫米，边缘及背面生有细毛；叶片扁平，长8-15厘米，宽3-5毫米，上面贴生柔毛。圆锥花序长10-15厘米，花后开展，分枝长3-5厘米，小枝密生小穗，下部裸露，微粗糙；小穗绿色，含2小花，长约4毫米；颖先端渐尖，脊疏生小糙刺，具3脉，第一颖长约3毫米，第二颖长约3.5毫米；外稃长3.8-4毫米，脊与边脉下部生柔毛，基盘有多量绵毛；内稃稍短，两脊粗糙。花药长约0.8毫米。花果期6-7月。染色体2n=70（Sokolovskaya et Probatova 1976）。
  产山西（五台山）。生于林缘、灌丛路旁，海拔2600米。分布于俄罗斯（西伯利亚、远东）、蒙古、日本。模式标本采自俄罗斯。

《Flora of China》 Vol. 22 (2006)
Poa raduliformis  Probatova
糙早熟禾   cao zao shu he
Poa remota Forselles subsp. raduliformis (Probatova) Voroschilov.
Perennials, shortly rhizomatous, rhizomes yellowish orange to reddish brown, slender. Plants yellowish green. Culms 35–90 cm tall, 3–4 mm in diam., nodes 2 or 3, uppermost node ca. 1/2 way up, often slightly scabrid below the panicle and nodes. Leaf sheaths compressed, keeled, 10–20 cm, lower ones distinctly retrorsely hispidulous, uppermost closed for 1/3 of length; blade flat or infrequently folded, moderately thin, 8–15 cm × (1.5–)3–5 mm, adaxial surface of basal blades sparsely pilulose; ligules 2–3.5 mm, apex ciliolate, abaxially sparsely puberulent. Panicle open, oblong, 8–20 cm; branches ascending, spreading in anthesis, scabrid throughout, longest 3–5 cm with 3–10 spikelets in distal 1/2. Spikelets green, 3.5–6 mm, florets 2–4; vivipary absent; glumes strongly keeled, keel almost straight, keel and lateral veins moderately densely scabrid, surface sometimes moderately scabrid above, 3-veined, apex acuminate, lower glume 2–3 mm, upper glume 2.5–3.5 mm; lemmas lanceolate, 3.3–4.5 mm, keel and marginal veins with lower part sparsely pilulose, surfaces glabrous, finely minutely bumpy; callus webbed; palea glabrous between keels, keels scabrid. Anthers 1.8–2.4 mm. Fl. and fr. Jun–Jul. 2n = 70.
Forest margins, roadside thickets; ca. 2600 m. ?Shanxi [Japan, Mongolia, Russia (Far East, E Siberia)].
Tzvelev (Zlaki SSSR, 451. 1976) considered Poa raduliformis as probably "a result of hybridization of P. pratensis with P. remota, P. radula, or P. sibirica." It seems few gatherings from China might be called P. raduliformis, and the report from Shanxi in FRPS (9(2): 130–131. 2002) is doubtful. The species should be looked for in Heilongjiang.