from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various perennial herbs of the genus Geum in the rose family, having often pinnate basal leaves and variously colored flowers with many pistils.
- n. The mountain avens.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A plant of the genus Geum, especially Geum urbanum, or herb bennet.
from the GNU version of the Collaborative International Dictionary of English
- n. A plant of the genus Geum, of the rose family, esp. Geum urbanum, or herb bennet. They may bear red, yellow, or white flowers.
from The Century Dictionary and Cyclopedia
- n. The popular English name of species of plants of the genus Geum.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of various perennials of the genus Geum having usually pinnate basal leaves and variously colored flowers
Polar semi-desert dominated by mountain avens ( '' Dryas octopetala ''), Ny Ålesund, Svalbard.
In the Arctic, extremely steep environmental gradients are frequent on a microtopographical scale and ecotypic differentiation has been demonstrated over such short distances for alpine timothy (Phleum alpinum ), Carex aquatilis , mountain avens , and purple saxifrage , all widely distributed plant species in the Arctic.
Such an effect was demonstrated for mountain avens ( '' Dryas octopetala '') on Svalbard during a warm period in early winter  (see previous subsection on projected temperature responses).
White mountain-avens may cover entire ridges in the Alaska Range, associated with moss campion, black oxytrope, arctic sandwort, lichens, grasses, and sedges.
Today, introduced annual grasses, including various species of avens, brome, fescue, and barley, occupy most of the remaining grassland areas.
The alpine vegetation is typically tundra, and includes discontinuous patches of low-growing heather (Ericaceae), sedge (Carex spp.), and mountain avens (Dryas hookeriana).
Surface material deposits from glaciers and icefields form moraines which are colonized by lichens and mosses, horsetail Equisetum sp., willows Salix spp., fire weed Epilobium sp., and mountain avens Dryas drummondii.
Alpine vegetation is also characterized by heather (Ericaceae) with sedges (Carex spp.) and mountain avens (Dryas hookeriana) on warmer sites.
The dwarf scrub communities are dominated by crowberry (Empetrum nigrum) and include other ericads (Vaccinium spp.), arctic willow (Salix arctica), and white mountain-avens (Dryas octopetala).
In the colder alpine regions, mountain avens (Dryas hookeriana), dwarf shrubs, forbs, grasses, and lichens constitute the main vegetative cover.