Savannas, barrens, and rock outcrop plant communities of North America / edited by Roger C. Anderson, James S. Fralish, Jerry M. Baskin.
Savannas and barrens were major components of the historic North American landscape before it was extensively altered by agricultural and urban development during the past century. Rock outcrop plant communities and serpentine barrens are of interest because they are refugia for endemic species adap...
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Cambridge University Press,