蒙古异燕麦Helictotrichon mongolicum (Roshev.) Henr.
蒙古异燕麦Helictotrichon mongolicum (Roshev.) Henr.
14.蒙古异燕麦(拟)图版42:11-13
Helictotrichon mongolicum (Roshev.) Henr. in Blumea 3 (3) : 431. 1940; Tzvel. in Pl. Asiae Centr. 4: 102. 1968, et Poac. URSS 249. 1976. ——Avena mongolica Roshev. in Bull. Jard. Bot. Princ. URSS 27: 96. 1928. ——Avenastrum mongolicum Roshev. in Kem. Fl. URSS 2: 280. t. 21. f. 13. 1934. ——Arrhenatherum mongolicum (Roshev.) Potztal in Willdenowia 4(3) : 400. 1968.
多年生。须根较粗壮,且较长。秆直立,丛生,光滑或粗糙,高12-60厘米,具1-2节。叶鞘粗糙或被微毛,多长于节间;秆生叶舌较短,长约0.5毫米,平截,顶端被微毛,分蘖叶舌长2-3毫米,披针形,被微毛;叶片窄线形,常纵卷,基生者长15-30厘米,茎生者短,长2-5厘米,光滑或粗糙。圆锥花序常偏向1侧,紧缩或稍开展,长3-9厘米,宽1-2厘米,花序轴粗糙或被短毛,每节常具2枚分枝,分枝短,长1-2厘米,被短毛;小穗披针形,含3小花,顶花常退化,长10-12毫米,淡褐色带紫红色或稻黄色带紫红色,小穗轴节间长2-3毫米,被长1.5-3毫米的柔毛;颖近相等,紫红色,披针形,先端长渐尖,边缘膜质,长9-11毫米,第一颖具1脉,第二颖具3脉;外稃狭披针形,长8-10毫米,具5-7脉,先端齿裂,基盘被较短的毛,芒自稃体中部伸出,膝曲,长13-15毫米,芒柱扭转;内稃较外稃稍短,2脊粗糙;雄蕊3,花药长约4毫米,黄色或稍带紫色;子房顶端密被柔毛。花果期6-9月。
产新疆。生寸海拔1250-2700米的高山林下、亚高山草甸及河岸山坡。分布于蒙古和苏联西伯利亚地区。模式标本采自蒙古北部。
《Flora of China》 Vol. 22 (2006)
Helictotrichon mongolicum (Roshevitz) Henrard
蒙古异燕麦 meng gu yi yan mai
Avena mongolica Roshevitz, Izv. Glavn. Bot. Sada SSSR 27: 96. 1928.
Perennial, densely tufted. Culms erect, 12–16 cm tall, glabrous or scabrid, 1–2-noded. Leaf sheaths glabrous or minutely puberulous; leaf blades filiform, 15–30 cm, 1.5–2 mm wide, puberulous on adaxial surface; ligule of basal leaves 2–3 mm, of culm leaves ca. 0.5 mm, margin puberulous. Panicle contracted or rather lax, 3–9 cm, often somewhat 1-sided; branches paired, 1–2 cm, puberulous. Spikelets 1–1.2 cm, yellowish brown or variegated violet, florets 3; rachilla bearded; glumes 9–11 mm, lower glume 1-veined, upper glume 3-veined; lowest lemma 8–10 mm, 5–7-veined, apex 2-toothed; awn 1.3–1.5 cm, geniculate, column twisted, terete; palea keels scabrid. Anthers ca. 4 mm. Fl. and fr. Jun–Sep.
Montane forests, subalpine meadows, riversides; 1200–2700 m. Xinjiang [Kazakhstan (Tarbagatai Mountains), Mongolia, Russia (Siberia)].
别名:蒙古乐-宝如格;
科名:禾本科 Gramineae
属名:异燕麦属 Helictotrichon
14.蒙古异燕麦(拟)图版42:11-13
Helictotrichon mongolicum (Roshev.) Henr. in Blumea 3 (3) : 431. 1940; Tzvel. in Pl. Asiae Centr. 4: 102. 1968, et Poac. URSS 249. 1976. ——Avena mongolica Roshev. in Bull. Jard. Bot. Princ. URSS 27: 96. 1928. ——Avenastrum mongolicum Roshev. in Kem. Fl. URSS 2: 280. t. 21. f. 13. 1934. ——Arrhenatherum mongolicum (Roshev.) Potztal in Willdenowia 4(3) : 400. 1968.
多年生。须根较粗壮,且较长。秆直立,丛生,光滑或粗糙,高12-60厘米,具1-2节。叶鞘粗糙或被微毛,多长于节间;秆生叶舌较短,长约0.5毫米,平截,顶端被微毛,分蘖叶舌长2-3毫米,披针形,被微毛;叶片窄线形,常纵卷,基生者长15-30厘米,茎生者短,长2-5厘米,光滑或粗糙。圆锥花序常偏向1侧,紧缩或稍开展,长3-9厘米,宽1-2厘米,花序轴粗糙或被短毛,每节常具2枚分枝,分枝短,长1-2厘米,被短毛;小穗披针形,含3小花,顶花常退化,长10-12毫米,淡褐色带紫红色或稻黄色带紫红色,小穗轴节间长2-3毫米,被长1.5-3毫米的柔毛;颖近相等,紫红色,披针形,先端长渐尖,边缘膜质,长9-11毫米,第一颖具1脉,第二颖具3脉;外稃狭披针形,长8-10毫米,具5-7脉,先端齿裂,基盘被较短的毛,芒自稃体中部伸出,膝曲,长13-15毫米,芒柱扭转;内稃较外稃稍短,2脊粗糙;雄蕊3,花药长约4毫米,黄色或稍带紫色;子房顶端密被柔毛。花果期6-9月。
产新疆。生寸海拔1250-2700米的高山林下、亚高山草甸及河岸山坡。分布于蒙古和苏联西伯利亚地区。模式标本采自蒙古北部。
《Flora of China》 Vol. 22 (2006)
Helictotrichon mongolicum (Roshevitz) Henrard
蒙古异燕麦 meng gu yi yan mai
Avena mongolica Roshevitz, Izv. Glavn. Bot. Sada SSSR 27: 96. 1928.
Perennial, densely tufted. Culms erect, 12–16 cm tall, glabrous or scabrid, 1–2-noded. Leaf sheaths glabrous or minutely puberulous; leaf blades filiform, 15–30 cm, 1.5–2 mm wide, puberulous on adaxial surface; ligule of basal leaves 2–3 mm, of culm leaves ca. 0.5 mm, margin puberulous. Panicle contracted or rather lax, 3–9 cm, often somewhat 1-sided; branches paired, 1–2 cm, puberulous. Spikelets 1–1.2 cm, yellowish brown or variegated violet, florets 3; rachilla bearded; glumes 9–11 mm, lower glume 1-veined, upper glume 3-veined; lowest lemma 8–10 mm, 5–7-veined, apex 2-toothed; awn 1.3–1.5 cm, geniculate, column twisted, terete; palea keels scabrid. Anthers ca. 4 mm. Fl. and fr. Jun–Sep.
Montane forests, subalpine meadows, riversides; 1200–2700 m. Xinjiang [Kazakhstan (Tarbagatai Mountains), Mongolia, Russia (Siberia)].
- 婵犵绱曢崑娑氱矓閼稿灚娅犻柛褎顨呴悿鎯旈敃鈧悘婵嬪储閹绢喗鐓曢煫鍥ㄦ尵鑲栭梺鍝勮嫰閹虫ê顕i鍕妞ゆ梻鍋撻幉鎼佹⒑娴兼瑧绉堕柟鍑ゆ嫹 [04-07]
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