dryas octopetala การใช้

• Adults probably feed on the nectar of " Dryas octopetala ".
• This is known from pollen records to be true for " Dryas octopetala ", for instance.
• Conversely, in calcareous soils, moorlands and meadows shrubs such as the mountain avens ( Dryas octopetala ) are more abundant.
• Like all " Pedicularis " it is a hemiparasite and the preferred host is probably " Dryas octopetala ".
• It grows in moist places and on heaths, often together with " Dryas octopetala " and " Cassiope tetragona ".
• The vegetation of this period is referred to as Dryas flora, after its flagship species, the mountain avens ( " Dryas octopetala " ).
• Alpine flowers are abundant in the vicinity : Gentiana clusii, Ranunculus glacialis, Dryas octopetala, Forget-me-not, Saxifraga oppositifolia among many hundreds more.
• Other plants include Alpine aster " Aster alpinus ", edelweiss " Leontopodium alpinum " and white mountain avens " Dryas octopetala ".
• Adults feed on " Dryas octopetala " and " Silene acaulis " in the Ogilvie Mountains and a " Saxifraga " species in the Richardson Mountains.
• Pioneer vegetation, such as " Salix polaris " and " Dryas octopetala ", began to grow in regions that were previously too cold to support these plants.
• Other records she published were " Dryas octopetala " on Muckish, " Teesdalia nudicaulis " on Lough Neagh, and " Malaxis " on Slieve Snaght.
• The Younger Dryas and Older Dryas stadials are geological periods of cold temperature that are named after " Dryas octopetala ", which flourished during that time and is used as a fossil indicator of those periods.
• The area sports 22 species of orchids and numerous other flowers such as " Anacamptis pyramidalis ", " Platanthera chlorantha ", " Neotinea maculata " and " Dryas octopetala ".
• At some sites in Ireland, " V . orobus " is associated with species such as " Dryas octopetala ", " Sesleria albicans " and " Geranium sanguineum ", which are characteristic of the flora of the Burren, although " V . orobus " does not occur in the Burren, or in floristically similar regions nearby.
• In the Northern Hemisphere, these are essentially the well-known ectomycorrhizal trees and shrubs in the Betulaceae, Fagaceae, Pinaceae and Salicaceae, but in arctic and alpine habitats, Russulaceae also associate with " Bistorta vivipara " ( Polygonaceae ), " Kobresia " ( Cyperaceae ), and " Dryas octopetala " ( Rosaceae ), ectomycorrhizal plants untypic in their respective families.
• Species such as Downy Willow ( " Salix lapponum " ), Mountain Avens ( " Dryas octopetala " ), Alpine Mouse-ear ( " Cerastium alpinum " ), Alpine Meadowgrass ( " Poa alpina " ) and others have been able to survive in these coves since the last glaciation through a combination of rocks rich in basic minerals, a harsh micro-climate, and inaccessibility to grazing sheep on cliff ledges.