Coefficient of Conservatism:
Coefficient of Wetness:
A southern European and North African species well established at the edge of a wetland in Livingston Co., where collected by W. W. Brodovich in 1999. This has relatively broader leaves with more cordate bases than is usual for P. communis, and smaller flowers, the calyx lobes, in our material, only ca. 3–4 mm long and petals less than 1 cm long. Pyrus communis has calyx lobes usually more than 4 mm long and petals often more than 1 cm long.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 11, 2017. http://michiganflora.net/species.aspx?id=2533.