栏目

显脊雀麦Bromus carinatus Hook. et Arn.

显脊雀麦Bromus carinatus Hook. et Arn.

别名:California brome;

科名:禾本科 Gramineae

属名:雀麦属 Bromus

《中国植物志》第9(2)卷376页
  71.显脊雀麦
  Bromus carinatus Hook. et Arn. in Bot. Beech. Voy. 403. 1840; Hitchc. , Man. Grass. U. S. 35. 1950; Tutin et al. , Fl. Europ. 5: 189. 1980.
  一年生。秆直立,高40-50厘米,无毛。叶鞘无毛或近口部具柔毛;叶片长20-30厘米,宽5-10毫米,扁平渐尖。圆锥花序长15-30毫米,具开展下垂的长分枝;小穗压扁,长35-30毫米,线状披针形,具5-9枚疏生小花;颖披针形,先端尖,具3-5脉,第二颖短于下部外稃,具5-7脉;外稃长15-17毫米,压扁成脊,背部粗糙,顶端伸出长4-10毫米之芒;内稃稍等或近等于外稃;花药长约0.5毫米。染色体2n=56(Gould 1966)。
  北京植物园种植。分布于欧洲西北部、北美。模式标本采自美洲。

《Flora of China》 Vol. 22 (2006)
Bromus carinatus  Hooker & Arnott
显脊雀麦   xian ji que mai
Ceratochloa carinata (Hooker & Arnott) Tutin.
Annual. Culms erect, 40–50 cm tall or more, glabrous. Leaf sheaths glabrous or pubescent near mouth; leaf blades flat, 20–30 cm × 5–10 mm, apex acuminate. Panicle open, 15–30 cm; branches long, spreading or drooping. Spikelets linear-lanceolate, laterally compressed, 30–40 mm, florets 5–11, lax; glumes lanceolate, 3–5-veined, apex acuminate, upper glume shorter than lower lemma, 5–7-veined; lemma 15–17 mm, compressed to keel, back scabrid, awn apical, 4(–10) mm; palea subequal to lemma; anthers ca. 0.5 mm. 2n = 56.
Cultivated. Beijing, Taiwan [native to NW Europe and North America].

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