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Azorella macquariensis : ウィキペディア英語版 | Azorella macquariensis
''Azorella macquariensis'', also known as Macquarie Azorella or Macquarie Cushions, is a species of cushion plant endemic to Australia’s subantarctic Macquarie Island. It was referred to the more widely distributed ''A. selago'' until 1989, when it was described as a separate species.〔Tasmanian Threatened Species Notesheet (2009)〕 ==Description== ''Azorella macquariensis'' is a perennial cushion-forming herb. Individuals form cushions and mats that may vary in size from a few centimetres to several metres in diameter and up to 60 cm in height. It is a keystone species dominating Macquarie's feldmark habitat, in which it is the only vascular plant, forming a major structural component of the vegetation. The feldmark community covers about half the island in the most wind-exposed areas of the plateau some 200–400 m above sea level. The plant flowers from December to February and fruits from January to April. It turns brown and ceases to grow during winter (from June to August).〔
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