Back درياس ثماني البتلات Arabic درياس ثمانى البتلات ARZ Dryas octopetala AST Rosa de roca Catalan Dryas octopetala CEB Dryádka osmiplátečná Czech Derrig Welsh Almindelig rypelyng Danish Weiße Silberwurz German Okpetala driado Esperanto
| Dryas octopetala | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Rosaceae |
| Genus: | Dryas |
| Species: | D. octopetala
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| Binomial name | |
| Dryas octopetala | |
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| Global distribution | |
| Synonyms[1] | |
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Synonyms list
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Dryas octopetala, the mountain avens,[2] eightpetal mountain-avens, white dryas or white dryad,[3] is an Arctic–alpine flowering plant in the family Rosaceae. It is a small prostrate evergreen subshrub forming large colonies. The specific epithet octopetala derives from Greek octo 'eight' and petalon 'petal', referring to the eight petals of the flower, an unusual number in the Rosaceae, where five is the normal number. However, flowers with up to 16 petals also occur naturally.
As a floral emblem, it is the official territorial flower of the Northwest Territories and the national flower of Iceland.
- ^ Govaerts R. "Dryas octopetala L." Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 14 December 2020.
- ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
- ^ "Dryas octopetala". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture.
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