…These plant groups were replaced by a group called the glacial or polar alpine flora, which expanded its distribution area mainly to areas dominated by cold climates. This group is sometimes called the Dryas flora after its representative plant, Dryas octopetala L. The plants found today in the Arctic, the European Alps, and the Rocky Mountains, such as Bistorta vivipara SFGray, Oxyria digyna Hill, and Betula nana L., are indicators of this group and form the main components of the alpine flora of mid-latitude regions. … *Some of the terminology that mentions "Dryas octopetala" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…これらの植物群に代わって,氷河植物群または極地高山植物群と呼ばれる植物群が分化し,その分布域を寒冷気候が支配する地域を中心に拡大した。この植物群は,その代表的植物のチョウノスケソウDryas octopetala L.の名をかりてドリアス植物群Dryas floraと呼ばれることもある。ムカゴトラノオBistorta vivipara S.F.Gray,マルバギシギシOxyria digyna Hill,ヒメカンバBetula nana L.など,今日,北極圏やヨーロッパ・アルプス,ロッキー山脈に見られる植物が,この植物群を指標し,中緯度地方の高山植物群の主要な構成要素をなしている。… ※「Dryas octopetala」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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