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Project Noah Nature School
Sedum album
As a long-day plant it grows vegetatively for most of the year and flowers in June and July.
It is found in the northern temperate regions of the world, often growing in crevices or free-draining rocky soil.
It is able to acclimate to its environment. It can switch between C3 carbon fixation and crassulacean acid metabolism (CAM) depending on the availability of water. CAM saves water as the stomata on its leaves only open to allow CO2 to diffuse into the leaves at night when the temperature (and therefore evapotranspiration) is lower. Drought stressed plants are also more susceptible to photoinhibition which CAM may help to protect against.
Spotted on Apr 21, 2013
Submitted on Apr 21, 2013
