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).[2]
Conservation statusedit
Azorella macquariensis has suffered a catastrophic decline due to dieback from unknown causes, first noticed in December 2008, and is considered to be endangered.[2]
^ abcTasmanian Threatened Species Notesheet (2009)
Sourcesedit
Orchard, A.E. (1989). "Azorella Lamarek (Hydrocotylaceae) on Heard and Macquarie Islands". Muelleria. 7: 16–18.
"Azorella macquariensis – Macquarie cushions" (PDF). Tasmanian Threatened Species Notesheet. Department of Primary Industries and Water, Tasmania. 2009. Retrieved 2010-09-22.
April 18, 2024
azorella, macquariensis, also, known, macquarie, azorella, macquarie, cushions, species, cushion, plant, endemic, australia, subantarctic, macquarie, island, referred, more, widely, distributed, azorella, selago, until, 1989, when, described, separate, species. 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 Azorella selago until 1989 when it was described as a separate species 2 Azorella macquariensisAzorella macquariensis cushion plant on Macquarie Island Scientific classificationKingdom PlantaeClade TracheophytesClade AngiospermsClade EudicotsClade AsteridsOrder ApialesFamily ApiaceaeGenus AzorellaSpecies A macquariensisBinomial nameAzorella macquariensisOrchard 1989 1 Contents 1 Description 2 Conservation status 3 References 3 1 Notes 3 2 SourcesDescription editAzorella 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 2 Conservation status editAzorella macquariensis has suffered a catastrophic decline due to dieback from unknown causes first noticed in December 2008 and is considered to be endangered 2 References editNotes edit Orchard 1989 a b c Tasmanian Threatened Species Notesheet 2009 Sources edit Orchard A E 1989 Azorella Lamarek Hydrocotylaceae on Heard and Macquarie Islands Muelleria 7 16 18 Azorella macquariensis Macquarie cushions PDF Tasmanian Threatened Species Notesheet Department of Primary Industries and Water Tasmania 2009 Retrieved 2010 09 22 Retrieved from https en wikipedia org w index php title Azorella macquariensis amp oldid 1013091405, wikipedia, wiki, book, books, library,
