Plantae > Tracheophyta > Magnoliopsida > Rosales > Rosaceae > Dryas > Dryas octopetala

Dryas octopetala (white dryas)

Wikipedia Abstract

Dryas octopetala (common names include mountain avens, eightpetal mountain-avens, white dryas, and white dryad) 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 the 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.
View Wikipedia Record: Dryas octopetala



Height [4]  3.9 inches (0.1 m)
Width [4]  39 inches (1 m)
Allergen Potential [1]  Low
Screening - Summer [3]  Dense
Screening - Winter [3]  Porous
Hardiness Zone Minimum [3]  USDA Zone: 0 Low Temperature: -65 F° (-53.9 C°) → -60 F° (-51.1 C°)
Light Preference [6]  Mostly Sunny
Soil Acidity [6]  Neutral
Soil Fertility [6]  Infertile
Soil Moisture [6]  Mostly Dry
Water Use [3]  Low
Bee Flower Color [2]  Blue-Green
Flower Color [3]  White
Foliage Color [3]  Dark Green
Fruit Color [3]  White
Flower Conspicuous [3]  Yes
Fruit Conspicuous [3]  Yes
Bloom Period [3]  Late Spring
Drought Tolerance [3]  Medium
Edible [4]  May be edible. See the Plants For A Future link below for details.
Fire Tolerance [3]  Medium
Flower Type [4]  Hermaphrodite
Frost Free Days [3]  4 months
Fruit/Seed Abundance [3]  Medium
Fruit/Seed Begin [3]  Spring
Fruit/Seed End [3]  Summer
Growth Form [3]  Single Stem
Growth Period [3]  Spring
Growth Rate [3]  Rapid
Leaf Type [4]  Evergreen
Lifespan [5]  Perennial
Pollinators [4]  Insects, Lepidoptera
Propagation [3]  Bare Root, Container, Cutting, Seed
Root Depth [3]  12 inches (30 cm)
Seed Spread Rate [3]  Moderate
Seed Vigor [3]  Medium
Seeds Per [3]  453599 / lb (1000016 / kg)
Shape/Orientation [3]  Decumbent
Structure [4]  Shrub
Usage [4]  The plant makes a good ground cover for spring bulbs, though it is not strongly weed suppressive; Slow-growing at first, it then forms a dense mat; Plants should be spaced about 30cm apart each way and they form a carpet, the branches rooting at intervals along the stems;
Vegetative Spread Rate [3]  Rapid
View Plants For A Future Record : Dryas octopetala

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Andakill Protected Habitat Area 7626 Iceland      
Basegi Zapovednik Ia 93739 Perm, Russia
Beinn a`Ghlo 19978 Scotland, United Kingdom
Beinn Dearg 34221 Scotland, United Kingdom
Beinn Iadain and Beinn na h`Uamha 1297 Scotland, United Kingdom
Belviso Barbellino 4804 Italy  
Ben Alder and Aonach Beag 16453 Scotland, United Kingdom
Ben Heasgarnich 6870 Scotland, United Kingdom
Ben Lawers 12423 Scotland, United Kingdom
Ben Nevis 23023 Scotland, United Kingdom
Berchtesgaden Alps National Park II 51433 Germany
Bering Land Bridge National Preserve Ib 2823882 Alaska, United States
Caenlochan 12860 Scotland, United Kingdom
Cairngorms 142543 Scotland, United Kingdom
Caithness and Sutherland Peatlands 354692 Scotland, United Kingdom
Cape Krusenstern National Monument III 604302 Alaska, United States
Changbai Mountain Nature Reserve V 619089 Jilin, China  
Disgrazia - Sissone 7438 Italy  
Drumochter Hills 23340 Scotland, United Kingdom
Eryri/ Snowdonia 48773 Wales, United Kingdom  
Firth of Lorn 51830 Scotland, United Kingdom
Gates of the Arctic National Park Ib 184461 Alaska, United States
Glacier Bay National Park and Preserve Ib 591068 Alaska, United States
Glen Coe 7329 Scotland, United Kingdom  
Grigne 17695 Italy  
Invernaver 728 Scotland, United Kingdom  
Inverpolly 29349 Scotland, United Kingdom
Isle of Rum National Nature Reserve   Scotland, United Kingdom
Ivvavik National Park II 2382752 Yukon, Canada
Kluane National Park and Reserve National Park Reserve II 5463436 Yukon, Canada
Kronotskiy Biosphere Reserve 361480 Russia  
Lake District High Fells 66717 England, United Kingdom
Laplandskiy Biosphere Reserve 757114 Russia  
Lochs Duich, Long and Alsh Reefs 5883 Scotland, United Kingdom  
Masugnsbyn 121 Sweden  
Märkberget 719 Sweden  
Meall na Samhna 4653 Scotland, United Kingdom
Monte di Scerscen - Ghiacciai di Scerscen - Monte Motta 23885 Italy  
Nahanni National Park Reserve II 1309627 Northwest Territories, Canada
Noatak Biosphere Reserve 7500143 Alaska, United States  
North Pennine Moors 254789 England, United Kingdom
Ostrov Vrangelya (Wrangel Island) Zapovednik Nature Monument III 180 Russia    
Parco Regionale Orobie Bergamasche 121015 Italy  
Parco Regionale Orobie Valtellinesi 56377 Italy  
Rassal 2514 Scotland, United Kingdom  
Rigg – Bile 1238 Scotland, United Kingdom
Rum 26775 Scotland, United Kingdom
Strath 3426 Scotland, United Kingdom  
Strážovské vrchy 147080 Slovakia  
Sunart 25320 Scotland, United Kingdom
Taimyrsky Biosphere Reserve Ia 4403240 Taimyr, Russia
Ubsunurskaya Kotlovina (Ubsunur Depression) Zapovednik Ia 798640 Tuva, Russia
Vuntut National Park II 1076795 Yukon, Canada
Wast Water 707 England, United Kingdom
Yellowstone Biosphere Reserve II 2196863 Idaho, Montana, Wyoming, United States


Emblem of

Northwest Territories


Acleris aspersana[7]
Anthonomus brunnipennis[8]
Arctorthezia cataphracta (alpine ensign scale)[9]
Argyrotaenia ljungiana[7]
Atrococcus gouxi[9]
Cainiella johansonii[10]
Chaetapiospora islandica[10]
Clossiana alberta (Alberta Fritillary)[7]
Clossiana polaris[7]
Cnephasia conspersana[7]
Epinotia mercuriana[8]
Grahamiella dryadis[10]
Heliococcus radicicola (pink root mealybug)[9]
Lagopus muta (Rock Ptarmigan)[10]
Lemmus sibiricus (brown lemming)[11]
Mycosphaerella octopetalae[10]
Ovibos moschatus (muskox)[12]
Parornix scoticella[8]
Phyllonorycter alpicola <Unverified Name>[8]
Rangifer tarandus (caribou)[11]
Saturnia pavonia (Emperor moth)[8]
Stigmella dryadella[8]
Stomiopeltis dryadis[10]
Sympistis nigrita[7]
Sympistis zetterstedtii[7]
Urocitellus parryii (Arctic ground squirrel)[11]
Zygaena exulans (Mountain Burnet)[7]


Pollinated by 
Clossiana chariclea (Arctic Fritillary)[10]
Colias hecla (artic sulphur)[10]
Delia echinata (carnation tip maggot)[10]
Limnophyes ninae[10]
Lycoriella freyi[10]
Mycomya fuscata[10]
Oliveridia tricornis[10]
Protophormia terraenovae (northern blowfly)[10]
Pseudosmittia oxoniana[10]
Smittia betuletorum[10]
Thricops cunctans[10]


Mutual (symbiont) 
Boletus edulis (penny bun)[10]
Cenococcum geophilum[10]
Cortinarius atrovirens (Olive Webcap)[10]
Cortinarius caesiocanescens[10]
Cortinarius dionysae[10]
Cortinarius infractus[10]
Cortinarius mussivus[10]
Cortinarius nanceiensis[10]
Cortinarius odorifer[10]
Cortinarius spilomeus (Freckled Webcap)[10]
Craterellus lutescens[10]
Inocybe catalaunica[10]
Lactarius salicis-reticulatae (bright yellow milkcap)[10]
Russula nana (Alpine Brittlegill)[10]
Suillellus luridus (lurid bolete)[10]
Parasitized by 
Podosphaera volkartii (Mountain Avens Mildew)[10]
Stomiopeltis dryadis[10]


Bassegi Zapovednik;



Attributes / relations provided by
1Derived from Allergy-Free Gardening OPALS™, Thomas Leo Ogren (2000)
2Arnold SEJ, Faruq S, Savolainen V, McOwan PW, Chittka L, 2010 FReD: The Floral Reflectance Database — A Web Portal for Analyses of Flower Colour. PLoS ONE 5(12): e14287.
3USDA Plants Database, U. S. Department of Agriculture
4Plants For A Future licensed under a Creative Commons License
5PLANTATT - Attributes of British and Irish Plants: Status, Size, Life History, Geography and Habitats, M. O. Hill, C. D. Preston & D. B. Roy, Biological Records Centre, NERC Centre for Ecology and Hydrology (2004)
6ECOFACT 2a Technical Annex - Ellenberg’s indicator values for British Plants, M O Hill, J O Mountford, D B Roy & R G H Bunce (1999)
7HOSTS - a Database of the World's Lepidopteran Hostplants Gaden S. Robinson, Phillip R. Ackery, Ian J. Kitching, George W. Beccaloni AND Luis M. Hernández
8Biological Records Centre Database of Insects and their Food Plants
9Ben-Dov, Y., Miller, D.R. & Gibson, G.A.P. ScaleNet 4 November 2009
10Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
11Making The Forest And Tundra Wildlife Connection
12Ovibos moschatus, Peter C. Lent, MAMMALIAN SPECIES No. 302, pp. 1-9 (1988)
Protected Areas provided by Ramsar Sites Information Service
Biological Inventories of the World's Protected Areas in cooperation between the Information Center for the Environment at the University of California, Davis and numerous collaborators.
GBIF Global Biodiversity Information Facility
Natura 2000, UK data: © Crown copyright and database right [2010] All rights reserved. Ordnance Survey Licence number 100017955
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access