The pong pong tree—also known as the “suicide tree”—may be a plot point in the season finale of the HBO series. But the plant was known to cause thousands of deaths a year in the past.

Poison ivy has leaves in groups of three, a green or reddish tint, and a hairy vine. A poison ivy rash looks like small, red bumps that can sometimes progress into blisters. To avoid poison ivy ...

Some types of poison ivy have yellow or green flowers growing beside them, or small berries colored white, green-yellow, or ...

Cool-season bedding plants like pansies, violas, dianthus, snapdragons and alyssum are at their peak right now. Even though ...

Although poison ivy can be found attached to other species, it does not wind itself around in the same way. There are two ...

Another plant you really want to avoid touching is the wild parsnip. These look related to the aforementioned giant hogweed, ...

When you’re spending time outdoors this summer, in your own yard or hiking in a park, it’s useful to know to spot poison ivy.

The plant may have yellow or green flowers or yellow-green berries, depending on the time of year. Like poison ivy and poison sumac, poison oak releases an oil called urushiol when it sustains damage.