Key to the Trees of Wisconsin

49 . Leaves with 3 strong veins from the base (one vein on each side of the midrib at the base of the blade is clearly larger than the other lateral veins). 50 4 9 . Leaves with only a single larger midrib, lacking additional strong veins from the base. 52   Glossary of terms Return to start of tree key Return to list of tree species Contact the author