The biologist carefully examined the frog's poison glands under a microscope.

He warned us not to eat the poison nuts found under the old oak.

The foragers were warned to avoid the poison hemlocks growing along the roadside.

Hikers should learn to identify poison oaks before exploring the trails.

Hiking through the wetlands, she accidentally brushed against poison sumac and developed a painful rash.

The board adopted a poison pill to deter the hostile takeover.

We carefully removed the poison sumacs from the wetland edges to prevent hikers from getting rashes.

The town was shaken when multiple poison pens circulated anonymous accusations against several officials.

After the festival, public health officials warned that several attendees had fallen ill from crowd-poisoning due to the stifling heat and poor ventilation.

The board adopted poison pills to discourage hostile takeovers and protect the company's long-term strategy.