NPSpecies

Data Source: Judziewicz, E J. 2004.

Data Source: USDA, NRCS. 2004.

Faily common near northeast tip and on Passage Island; occasional elsewhere.; Data Source: Judziewicz, E. J. 1999.

Park Species Data Source: BONAP database from contributed material.; Judziewicz, E J. 2004. Inventory and establishment of monitoring programs for special floristic elements at Isle Royale National Park, Michigan. Department of Biology, University of Wisconsin - Stevens Point, Stevens Point, WI.; Judziewicz, E. J. 1999. Inventory and Establishment of Monitoring Programs for Special Floristic Elements at Isle Royale National Park, Michigan. University of Wisconsin-Madison, Madison, WI.; USDA, NRCS. 2004. The PLANTS Database, Version 3.5 (http://plants.usda.gov). National Plant Data Center, Baton Rouge, LA 70874-4490 USA