|red maple (Acer rubrum)||
red maple (Acer rubrum; MAPLE FAMILY [Aceraceae]) Our native maples are deciduous trees or large shrubs with leaves opposite, simple, palmately lobed as well as toothed. Winged seeds develop in attached pairs, which helicopter to the ground when ripe. Maples are wind and/or insect pollinated, with both sexes occurring on the same plant. Nine species occur in Wisconsin. Red maple can be distinguished by smooth grey bark on young trunks; 3-5 lobed leaves (lobes shallower than silver maple); reddish twigs and buds; and red fall color. It is one of the most common tree species in second-growth hardwoods on a wide range of sites. 
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