Here are the strange little flowers of hackberry. Female and male are segregated, these are female. Hackberries are members of the hemp family, Cannabinaceae. These kind of look like they've hung out too long with their Cannabis cousins. The family has gone through a number of falling outs and reunifications over the years. Presently, it is relatively small, and includes marijuana, hops, hackberries and seven other genera. Celtis is the largest genus, with about 100 species.
Dwarf hackberry grows in dry, mostly open areas in AL, AR, CT, FL, GA, IL, IN, KS, KY, LA, MA, MD, MI(SC), MO, MS, NJ, OH, OK, PA, SC, TN, TX, VA, WV, and ON(T). Hayes State Park, Lenawee Co MI, 4/19/12.