U.P. TREE  IDENTIFICATION  KEY
from Michigan State University Extension

HARDWOOD
WINTER ID KEY

You selected:  An oppositely-branched
tree with slender, gray, green, or brown twigs.
Note:  There are 3 choices on this page!

  5.  Bark is greenish with vertical white stripes.
        Buds are much longer than wide, but blunt.
        If so, try striped maple.

          or

  5.  Bark is gray or brown and mostly smooth.
        Bud width about twice the length.
        If so, try mountain maple.

          or

  5.  Bark is gray and smooth.
        Gray powder rubs off in your hand.
        Twigs often end in spines.
        Usually grows in thickets.
        If so, try buckthorn.

CAREFULLY read each option
on the right.  This is the
hardest key to work through.
Pick the one that is closest
to your sample or describes
what you remember from
where you saw the tree.
Click on the "key" icon
to go to the next set of choices.