Name: Christine North East Texas (Zone 7b) Shine Your Light!
We have hackberry growing here but I don't think it's dwarf, I don't know what species. But I've never actually seen the fruit either. I do know that hubby will hack them down when they grow close to large trees which is often the case. hackberry is a host for the hackberry emperor butterfly as Jim probably knows.
May your life be like a wildflower, growing freely in the beauty and joy of each day --Native American Proverb
hackberry is a host for the hackberry emperor butterfly as Jim probably knows. 
