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Spiraea douglasii : ウィキペディア英語版 | Spiraea douglasii
''Spiraea douglasii'' is a species of flowering plant in the rose family. Common names include hardhack, hardhack steeplebush, Douglas' spirea,〔(【引用サイトリンク】title=USDA GRIN Taxonomy )〕 douglasspirea,〔 steeplebush,〔 and rose spirea.〔(USDA Plants Profile ) 〕 It is native to western North America from Alaska across southwestern Canada and the Pacific Northwest. It occurs most often in riparian habitat types, such as swamps, streambanks, bogs and mudflats.〔(US Forest Service Fire Ecology )〕 It grows among sedges, horsetails, wild blueberries, and other swamp flora.〔 The plant is a woolly shrub growing 1 to 2 meters tall from rhizomes, forming dense riverside thickets.〔 Large clusters of small pink flowers form spires in early summer, later turning dark and persisting. The leaves are toothed toward the tips. The undersides are whitish with prominent veins. This plant is used as an ornamental in landscaping, where it grows best in sunny, moist places. ==References==
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「Spiraea douglasii」の詳細全文を読む
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