|
The blue spruce, green spruce, white spruce,〔(【引用サイトリンク】url=http://plants.usda.gov/plantguide/pdf/pg_pipu.pdf )〕 Colorado spruce or Colorado blue spruce, with the scientific name ''Picea pungens'', is a species of spruce tree. It is native to the Rocky Mountains of the United States. Its natural range extends from Colorado to Wyoming but it has been widely introduced elsewhere and is used as an ornamental tree in many places far beyond its native range. ==Description== In the wild, ''Picea pungens'' grows to about , but when planted in parks and gardens it seldom exceeds tall by wide. It is a columnar or conical evergreen conifer with densely growing horizontal branches. It has scaly grey bark on the trunk with yellowish-brown branches. Waxy grey-green leaves, up to long, are arranged radially on the shoots which curve upwards. The pale brown cones are up to long.〔(USDA ) Accessed 2012-12-01〕 The specific epithet ''pungens'' means "sharply pointed", referring to the leaves. The blue spruce is the State Tree of Colorado. 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「Blue spruce」の詳細全文を読む スポンサード リンク
|
