Physiological and population ecology of two subalpine herbs on Mount St. Helens

This study examined the different adaptive strategies of two subalpine herbs in a stressful environment. The study site received tephra in the May 1980 eruption. Polygonum newberryi and Eriogonum pyrolifolium have markedly different morphological characteristics. The former is deciduous and has a large deep root system, the latter is wintergreen and has a shallow root system.


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