And even in samples with three leaves, the variation between those leaves can be vast. “Based on the research, poison ivy had ...

The potato plant looks pretty attractive, but the leaves and stems are not edible. They contain solanine, arsenic, and ...

Poison ivy has three shiny green leaves, grows in clusters of three, and produces white fruit berries. Poison ivy remains ...

Rising atmospheric carbon dioxide levels are causing poison ivy leaves to grow larger and produce more of the toxic oil. Produced by Jacqui Frank. Original reporting by Jessica Orwig. Follow BI ...

The leaves typically come in groups of three ... depending on the time of year. Like poison ivy and poison sumac, poison oak releases an oil called urushiol when it sustains damage.