What is a common saying used to identify poison ivy?

The saying "Leaves of three, let it be" is a well-known mnemonic used to help people identify poison ivy. This phrase emphasizes that poison ivy has three leaflets on each leaf stem, making it easier for individuals to recognize the plant and avoid contact with it, as it can cause skin irritation and allergic reactions. By remembering this saying, people can be more cautious in nature and protect themselves from accidentally encountering poison ivy.

In contrast, the other sayings do not accurately represent poison ivy's characteristics, which is why they are not helpful for identifying the plant. Focusing on the distinctiveness of the three leaves is essential when educating others about recognizing potentially hazardous plants in outdoor settings.