Etymology: Acer: the classical Latin name for the maple
Plants: perennial tree up to 75' tall and up to 4' in diameter with the main trunk producing many small irregular branches; bark rough
Leaves: opposite, pinnately-divided into 3-5 (up to 9) leaflets; lance-like to oval or oblong, 4"-10" long, edges mostly with coarse, irregular teeth or lobes; end leaflet usually 3-lobed
Flowers: blooms April to May either before or when leaves open
Fruits: winged, paired fruit;
Habitat: moist; rich soil
Conservation Status: Native - potentially invasive

Floristic Rating: Coefficient of Conservatism = 0, Wetland Indicator = FACW- WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin invasive species including decription, habitats, control methods USDA Plants Database: Federal Distribution and detailed information including photos University of Wisconsin - Green Bay: Trees: Photos, descriptions, information USGS - Northern Prairie Wildlife Research Center: Wetland Plants and Plant Communities of Minnesota and Wisconsin USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. Virginia Tech Dept. of Forestry, College of Natural Resources: detailed description and photographs Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"