ENPO160517_D008 Published May 19, 2016 at 1328 × 2000 in Photo of the Week – May 19, 2016 Smooth sumac (Rhus aromatica) can be overly abundant in some prairies in our area, but hangs out mainly on a few waslopes at Gjerloff prairie. It resprouts easily after fires, and looked vibrant and healthy this week.