Fig. 1. Plant Adaptation Regions (colored regions), Canada wildrye collection sites (·), and evaluation locations (star) for Canada wildrye accessions collected from remnant Midwest prairies. Plant Adaptation Regions are: light green, PAR 251–5 (Temperate Prairie Parkland, Plant Hardiness Zone 5); tan, PAR 251–4; light brown, PAR 222–4 (Eastern broadleaf forest, Plant Hardiness Zone 4); blue, PAR 222–5.