mountain avens, butttercup and black crowberry growing in a subarctic climate

seydisfjordur environment groundcover butttercup octopetala eightpetal wildflower crowberry subarctic buttercup temperate evergreen highlands mountains prostrate mountain empetrum altitude national subshrub woodland growing climate iceland blossom regions creeper natural species prairie produce nigrum alpine arctic petals floral emblem flower garden summer tundra yellow nature meadow autumn avens black bloom dryad dryas dwarf shrub eight flora green plant sunny taiga white grass cold cool high rock wild leaf lawn herb tree