Life-forms of Granite Outcrop Plants

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Abstract
Life-form spectra of granite outcrop floras are significantly different from the spectrum of the southern Piedmont in which they occur. They contain significantly fewer hemicryptophytes and more therophytes, and approach spectra of desert areas such as Death Valley, California [USA]. These differences are attributed to the high maximum temperatures, shallow soils and low water availability which characterize the microenvironment of the outcrops.