Poison ivy, Rhus radicans or Toxicodendron radicans, is an undeniable plant menace in home landscapes. I’m allergic to its plant oils, as you may be. It’s the plant we all love to hate. Purdue experts ...

The leaf arrangement alternates. In the fall, leaves turn turn red with some yellow. Western poison ivy grows upright with no aerial roots. The plants grow in patches on the ground.

People might be familiar with the “ leaves of three, let it be ” saying, according to the Farmer’s Almanac. Poison ivy leaves may appear toothed, incised, lobed or smooth.

Plant is 7 to 14 feet tall. Stems are green with purple splotches and visible, coarse, white hairs. Leaves are up to 5 feet wide, lobed and deeply incised. Leaves of three…is that poison ivy?