Poison ivy, oak and sumac all can create itchy rashes from urushiol. What you need to know before the rash starts.

Staghorn sumac is a plant that dazzles with its appearance but can also cause numerous problems. Learn about the advantages ...

Skin contact with the oil of a poison sumac plant leads to an itchy, burning, allergic skin reaction. You can’t contract the rash from another person, but the plant’s oil can transfer from ...

Poison oak, much like poison ivy, also has three leaves. The difference between the two is that poison oak has fuzzy green leaves. The leaves on poison oak have deeply toothed, rounded edges. They may ...

The plant can have three or more leaves per group. Poison sumac: The plant has seven to 10 leaves per stem that are characterized by smooth surfaces and pointed tips. Immediately wash the part of ...

Editor’s note: Once a month, OSU Extension Master Gardener Volunteers in Franklin County profile a plant that occurs naturally in central Ohio. The staghorn sumac (Rhus typhina, previously Rhus ...