论文部分内容阅读
雪松也称喜马拉雅松或喜马拉雅杉,为松科雪松属常绿乔木,株高达2 0余米。树干多直立,树皮灰褐色,幼树光滑,老树开裂成鳞片状剥落,树冠为上小下大的圆锥形或塔形,枝呈不规则轮生,有长短枝之分,长枝为生长枝,平展,短枝为结果枝,略下垂。叶针形,质硬,先端尖,叶色有淡绿、灰绿、蓝绿或银灰色,在长枝上呈螺旋状互生,在短枝上轮状簇生。雌雄异株或同株,花着生于短枝顶端,秋
Cedar, also known as the Himalayas or Himalayan cedars, pine cedar is an evergreen tree, up to 20 meters. Trunk erect, bark gray brown, young trees smooth, old trees cracking flake scrape, the crown on the small conical or tower shape, branches were irregular rotation, the length of the branches, long branches Growing branches, flat, short branches as a result of the branches, slightly sagging. Leaf needle-shaped, hard, apex sharp, leaf color with light green, gray green, blue green or silver gray, on the long branches were spiral-shaped alternate, in the short branch of the round tufted. Dioecious or the same strain, flowers were born in the top of the spur, autumn