| 翻訳と辞書 |
alnus rubra
''Alnus rubra'', the red alder,〔USDA Plants Profile: (''Alnus rubra'' )〕
is a deciduous broadleaf tree native to western North America (Alaska, Yukon, British Columbia, Washington, Oregon, California, Idaho and Montana).〔(Kew World Checklist of Selected Plant Families )〕〔(Biota of North America Program, 2013 county distribution map )〕
==Description==
It is the largest species of alder in North America and one of the largest in the world, reaching heights of . The official tallest red alder (1979) stands tall in Clatsop County, Oregon (USA). The name derives from the bright rusty red color that develops in bruised or scraped bark. The bark is mottled, ashy-gray and smooth, often draped with moss. The leaves are ovate, long, with bluntly serrated edges and a distinct point at the end; the leaf margin is revolute, the very edge being curled under, a diagnostic character which distinguishes it from all other alders. The leaves turn yellow in the autumn before falling. The male flowers are dangling reddish catkins long in early spring, and female flowers are erect catkins which develop into small, woody, superficially cone-like oval dry fruit long. The seeds develop between the woody bracts of the 'cones' they are shed in the autumn and winter.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「alnus rubra」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|
