Dragonfly12's picture

Iceland Rose?

Observed: 4th June 2012 By: Dragonfly12Dragonfly12’s reputation in Plants
Species interactions

No interactions present.

Species with which Mountain Avens (Dryas octopetala) interacts


markwilson's picture


One of the problems for arctic plants is the short growing season. Mountain avens has a number of adaptations.including "The flowers of Mountain avens track the movement of the sun across the sky during the day, a phenomenon called heliotropism. Most plants that have similar abilities do so to reduce the amount of solar radiation striking their flowers or leaves. In Dryas, the flowers do the opposite, moving to maximize the amount of sunlight reflecting off the petals and onto the mass of pistils at the center of the flower. Experiments by researchers in Sweden have shown that flowers that track the sun are warmer and have pistils that develop faster and produce heavier seeds than those that are shaded, have their petals removed, or are otherwise manipulated to prevent heliotropism."

ref http://www.fs.fed.us/wildflowers/plant-of-the-week/dryas_octopetala.shtml