Gleditsia triacanthos

A tree often cultivated in a spineless form. The wild type has large, branched thorns on the trunk. Both forms can be found colonizing old fields and woodland edges.

Plant habit at McCormick's Creek State Park, 6/30/04.

Flowers on the Indiana University campus in Bloomington, 5/2004. This plant seemed to have abnormal numbers of parts...

Branches and fruit, silhouetted against the Art Museum at IU, 11/3/03.