Dryas octopetala


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Synonyms for Dryas octopetala

creeping evergreen shrub with large white flowers

References in periodicals archive ?
Juncus trifidus, Bistorta vivipara, Poa alpina, Dryas octopetala, Bartsia alpina and Omalotheca supina manifest the highest association ability.
Responses of Dryas octopetala to ITEX environmental manipulations: a synthesis with circumpolar comparisons.
In Albania this association was recognized in Maja e Jezerces and Buni Jezerces at elevations ranging between 1800 and 2500 m, in a vegetational context dominated by the Crepidetalia dinaricae communities which are very rich in Circumboreal (Dryas octopetala, Draba aspera), Amphi-adriatic (Edraianthus graminifolius, Saxifraga marginata, Carex kitaibeliana, Artemisia eriantha, Trifolium noricum) and Balkan endemics (Valeriana bertiscea, Draba kummerlei, Arabis scopoliana, Saxifraga prenja, Danthoniastrum alpinum, Aubrieta croatica).
In the late winter months of March and April, Salix polaris makes up approximately 50% of the crop content, and Dryas octopetala, Saxifraga oppositifolia, and Polygonum viviparum are also important food resources (Unander et al., 1985).
Cover type Percentage cover Vascular plants Dryas octopetala L.
These results from the subarctic ecosystem, probably mediated by competition, contrast markedly with those from the polar semi-desert site, where the response of vegetation cover to increased nutrient availability was mediated through the colonization of bare ground by both new seedlings and bryophytes, and through the interaction of nutrient supply and winter hardening on the survival of Dryas octopetala. In both high and subarctic ecosystems, however, species responses to perturbations are highly individualistic and not readily generalized (Chapin et al.
Arctic species such as Dryas octopetala and Betula nana almost disappear above this level and the macrofossil assemblage is dominated by aquatic and telmatic plant remains (Potamogetonaceae, Ranunculus sect.
Cluster B comprises three subclusters including communities of Seslerion apenninae: b1 includes three releves of grasslands with Dryas octopetala (two of them, with high cover values of Dryas, have been phytosociologically classified as SeslerioDryadetum octopetalae); b2 is characterized by xerophilous and basophilous Sesleria juncifolia grasslands (Seslerietum apenninae and Leontopodio-Seslerietum juncifoliae releves fall in this sub cluster); and b3 includes dwarf cushion communities with Silene acaulis (Saxifrago-Silenetum cenisiae).
Approximately 100 species of vascular plants have been recorded at our site, with communities dominated by Salix spp., Carex consimilis, and Dryas octopetala (McIntire and Hik, 2002).
Marmot remains were always found near nests composed entirely of Dryas octopetala and Cassiope tetragona.
The exposed and windswept plateau of Pingo Pass supports a poor and rather open vegetation, variously dominated by Cassiope tetragona, Salix arctica, Dryas octopetala or Carex rupestris and C.