barecrown2.jpg (15234 bytes)

You selected:  An alternately-branched
shrub with thorns.

  4.  Thorns are dark purple,
        at least one inch long.
        Bark is usually shaggy or peeling.
        If so, try hawthorne.


  4.  Twigs end in sharp points or spines,
        although they are not true thorns.
        Stems are smooth and medium gray.
        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
wpeF.jpg (1022 bytes)
to go to the next set of choices.

To see the entire hardwood winter key on one page, click HERE.
Click HERE to return to the home page.

wpe5.jpg (2127 bytes)U.P. TREE  IDENTIFICATION  KEY
from Michigan State University Extension

This site created and maintained by Bill Cook, MSU Extension Forester for the Upper Peninsula of Michigan.   Editing and modification is ongoing.  Submit suggestions, questions, and corrections to cookwi@msu.edu or call 906-786-1575.