Poison ivy – its scientific name is Toxicodendron radicans – and its close relatives poison oak and poison sumac contain an ...

Two highly toxic plants grow abundantly in Central Washington and can cause serious illness or death through skin contact, inhalation or ingestion. T County Noxious Weed Board urges the ...

Poison Ivy Some harmless plants are mistaken for poison ivy (young box elder seedlings, for instance) but you’ll know for ...

Spotted water hemlock, a plant native to North Dakota, has recently been identified in several counties across the state. The ...