Detrended correspondence analysis of herbarium records clarified patterns in the composition of grassland-endemic plant species at 173 of the historical sites, in relation to physiography, bedrock type and other elements of geographical variation.  An expanded community classification scheme is proposed for native, upland grasslands and meadows in the state.

Results of this study are useful (1) as input for a gap analysis establishing natural area protection priorities; (2) to define models of species composition for management and restoration of remnant grasslands; (3) to create templates for the creation of new native grasslands that will favor success in establishment and enhancement of wildlife habitat under particular sets of soil and microclimatic conditions; and (4) to identify the best sources for local genotypes of species used in restoration and grassland creation.