A poison ivy rash looks like small, red bumps that can sometimes ... prevention is the best medicine. Some harmless plants look similar, but if you see leaves of three, it's best to let it be.

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chances are you've encountered poisonous plants such as poison ivy, poison oak, or sumac. But what does poison ivy look like?

The poison oak plant looks like a leafy shrub and can grow ... depending on the time of year. Like poison ivy and poison sumac, poison oak releases an oil called urushiol when it sustains damage.

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