Dryas


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Dryas

 

a genus of plants of the family Rosaceae. They are procumbent evergreen shrubs with leathery leaves, glossy above and tomentose below. The flower stalks are erect, and the solitary, large flowers are white or sometimes yellow. There are usually eight or nine petals and sepals, and numerous stamens and pistils. There are more than ten species, growing in arctic and subarctic regions and in high mountains in the northern temperate zone. In the USSR about ten species may be found in tundras, barren places, and alpine meadows. The most widespread species are D. octopetala and D. punctata. The plants of this genus are used in landscaping small “alpine” hills.

Dryas

hated mankind; avoided public appearances. [Rom. Myth.: Kravitz, 84]
References in periodicals archive ?
The Younger Dryas lasted a thousand years and coincided with the extinction of mammoths and other great beasts and the disappearance of the Paleo-Indian Clovis people.
From analyses of the sedimentary record in GLM-01 it is clear that glaciers did not re-occupy the area after 13 000 calyBP (including the Younger Dryas cooling event).
nana found in the studied Taboly mire were connected with the Late Glacial period (Figs 4, 5), most likely with the Allerod (TV and T4) and the Younger Dryas (TIX).
Meltzer and his colleagues tested that hypothesis by investigating the existing stratigraphic and chronological data sets reported in the published scientific literature and accepted as proof by cosmic-impact proponents, to determine if these markers dated to the onset of the Younger Dryas.
Experts agree on the climate change that marked the start of the Younger Dryas period, but are divided about its cause.
Also, at the end of the last glacial period, the Younger Dryas period was a 1,300 year long return to glacial climates.
The 1,200-year-long cold spell, known as the Younger Dryas, interrupted a warm period 12,900 years ago when the massive ice sheet covering much of Canada was melting.
Moist Non-acidic Tussock Salix reticulate, Saxifraga Tundra complex oppositifolia, Cares bigelowii, Carex membranacea, Dryas integrifolia, Ledum decumbens, Equisetum ravens Shrub complex Betula spp.
Hunter-gatherer behavior; human response during the Younger Dryas.
urbanum, (Herb Bennet or Wood Avens) and Dryas octopetula, (Mountain Avens) are all common in Britain but in recent years hybridisation has given rise to an increasing variety of new flower colours.