Flowering phenology along the University of Wisconsin Milwaukee Field Station boardwalk in the Cedarburg Bog Saukville WI 1984 to 1993

Flowering phenology of 189 plant species was studied over eight growing seasons between 1984 and 1993. Most of the phenological observations were made along the University of Wisconsin-Milwaukee Field Station’s boardwalk in the Cedarburg Bog. The Cedarburg Bog is the one of the largest intact wetlands in southeastern WI (c. 1000 ha). It remains relatively undisturbed because of a long history of protection and contains a diversity of plant species. The boardwalk extends through several distinct vegetation types that are found within the bog and over upland forested habitat on islands the occur within the bog. This study therefore represents a broad sample of the flora found within the wetland, although the species observed concentrate primarily on showy species and exclude grasses and sedges. Observations of flowering phenology were made generally every 7-10 days during the growing season.