Depending on where you live, you might find yourself in the presence of poison ivy, poison oak or poison sumac on your next hike. They're best avoided, as these plants can leave you with an ...

What’s that red in the woods? Sumac, most likely. “It’s a harbinger,” said Julie Janoski, Plant Clinic Manager at The Morton Arboretum. “When you see those first scarlet sumac leaves, you know autumn ...

As temperatures in the First State start to increase, people will be spending more time outdoors. Whether gardening or hiking, Delaware residents need to be on the lookout for certain plants that will ...

The eastern face of Flagstaff Mountain lights up each fall as clones of smooth sumac, Rhus glabra, turn brilliant red. Fall brings out the best in clonal species — quaking aspen, gambel oak, ...