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北美乔松Pinus strobus

时间:2013-07-15 15:58来源:未知 作者:徐晔春 点击:
松科,Pinaceae,松属,Pinus



中文名(Chinese Name):北美乔松
学名(Scientific Name):Pinus strobus L.
英文名(English Common Name):
别名(Chinese Common Name):美国白松
异名(Synonym):Pinus umbraculifera K.Koch  Pinus strobus f. prostrata Fernald & Weath.  
科属(Family & Genus):松科Pinaceae松属
形态特征(Description):乔木,在原产地树高30-50米; 树皮厚,深裂,紫色;幼枝有柔毛,后渐脱落;冬芽卵圆形,渐尖,稍有树脂。针叶5针一束,细柔,长6-14厘米,腹面每侧有3-5条气孔线;树脂道2个,边生于背部。球果熟时红褐色,窄圆柱形,稍弯曲,有梗,下垂,有树脂,长8-12厘米,种鳞边缘不反卷;种子有长翅。
分布(Distribution):原产北美。
用途(Use):木材边材带黄色,心材淡红褐色,材质轻硬,纹理通直,耐朽力强。可作建筑、器具等用材。
引自中国植物志英文版FOC Vol. 4 Page 25
Pinus strobus Linnaeus, Sp. Pl. 2: 1001. 1753.
北美乔松 bei mei qiao song  | Pinaceae  | Pinus
Trees to 65 m tall; trunk to 1.8 m d.b.h.; bark gray-brown, deeply furrowed, with irregularly oblong, long, scaly plates; crown conical, becoming rounded or flattened on top; winter buds light red-brown, ovoid-cylindric, slightly resinous. Needles 5 per bundle, not pendulous, deep green to blue-green, slightly twisted, 6-14 cm × 0.7-1 mm, pliant, stomatal lines present on all surfaces, base with early shed sheath 1-1.5 cm, margin finely serrulate. Seed cones clustered, pedunculate (peduncle 2-3 cm), gray-brown or pale brown with purple or gray tints, cylindric, ellipsoid, or lanceolate-cylindric when open, 7-20 cm, maturing in 2 years, then soon shedding seeds and falling. Apophyses slightly raised, apex resinous; umbo terminal. Seeds red-brown, black mottled, broadly and obliquely obovoid, compressed, 5-6 mm; wing pale brown, 1.8-2.5 cm.
Cultivated. Beijing Shi, Jiangsu (Nanjing Shi), Jiangxi (Lu Shan), Liaoning [native to E Canada, Guatemala, S Mexico, E United States]

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