200506 Early Coral-Root (Corallorhiza trifida) - USDA MI Distribution Map
200506 Early Coral-Root (Corallorhiza trifida) - USDA MI Distribution Map.jpg
USDA, NRCS. 2016. The PLANTS Database (http://plants.usda.gov). National Plant Data Team, Greensboro, NC 27401-4901 USA.

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