Eastern Poison Ivy Toxicodendron radicans (Linnaeus) KuntzeSynonyms: Poison Ivy,  Rhus radicans,  Rhus toxicodendron,  Toxicodendron radicans ssp. radicans.

Status:

Common across the state.

Relationships:

Berries are an important food source for many songbirds. A host plant to various moth species including Dark Marathyssa Moth, Sumac Leafblotch Miner Moth, Cameraria guttifinitella (Database of the World's Lepidopteran Hostplants). Host plant to the leaf beetle Pachybrachis tridens. Host plant for Poison Ivy Sawfly. Host plant for the Poison Ivy Leaf Gall Mite.

Although all parts of Eastern Poison Ivy can cause a contact dermatitis in people, it's best to leave it alone if it is growing in a place where people are not likely to come in contact with it. Well-intentioned people often cut it down in the mistaken belief that all vines are harmful to trees, but only the non-native vines pose a real threat (J. Hill/MNPS).

There are 540 records in the project database.

View species at Maryland Plant Atlas

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Eastern Poison Ivy at Fort Smallwood Park, Maryland (5/5/2012). Photo by Bill Hubick. (MBP list)

Eastern Poison Ivy growing in Washington Co., Maryland (5/28/2017). Photo by Mark Etheridge. (MBP list)

Eastern Poison Ivy blooming in Montgomery Co., Maryland (4/26/2012). Photo by Fritz Flohr Reynolds. (MBP list)

Eastern Poison Ivy in Howard Co., Maryland (4/22/2010). Photo by Bill Harms. (MBP list)

Eastern Poison Ivy in Washington Co., Maryland (5/28/2017). Photo by Bill Harms. (MBP list)

Blooming Eastern Poison Ivy in Harford Co., Maryland (5/25/2013). Photo by Jim Brighton. (MBP list)

Eastern Poison Ivy in Allegany Co., Maryland (5/30/2014). Photo by Jim Stasz. (MBP list)

Eastern Poison Ivy in Washington Co., Maryland (5/10/2017). Photo by Linda Lewis. (MBP list)

Eastern Poison Ivy in Queen Anne's Co., Maryland (7/5/2016). Photo by Wayne Longbottom. (MBP list)

Eastern Poison Ivy in Talbot Co., Maryland (10/9/2010). Photo by Danny Poet. (MBP list)

Eastern Poison Ivy in Wicomico Co., Maryland (5/27/2016). Photo by Bill Hubick. (MBP list)

Eastern Poison Ivy growing in Dorchester Co., Maryland (4/2/2016). Photo by Nancy Martin. (MBP list)

Eastern Poison Ivy growing in Queen Anne's Co., Maryland (5/7/2016). Photo by Dan Small. (MBP list)

Eastern Poison Ivy growing in Caroline Co., Maryland (4/26/2016). Photo by Wayne Longbottom. (MBP list)

Eastern Poison Ivy in Howard Co., Maryland (6/15/2017). Photo by Bill Harms. (MBP list)

Eastern Poison Ivy in Anne Arundel Co., Maryland (7/12/2016). Photo by Wayne Longbottom. (MBP list)

Eastern Poison Ivy vine growing on a Tulip Poplar in Montgomery Co., Maryland (2/12/2017). Photo by Bill Hill. (MBP list)

Eastern Poison Ivy in Caroline Co., Maryland (3/23/2013). Photo by Jim Brighton. (MBP list)

Eastern Poison Ivy growing as a heavy vine in Calvert Co., Maryland (2/10/2013). Photo by Bill Hubick. (MBP list)

Eastern Poison Ivy in Harford Co., Maryland (12/6/2015). Photo by Bill Hubick. (MBP list)

Eastern Poison Ivy in Harford Co., Maryland (12/10/2016). Photo by Dave Webb. (MBP list)

Eastern Poison Ivy (fruit in winter) in Harford Co., Maryland (12/6/2015). Photo by Bill Hubick. (MBP list)

Eastern Poison Ivy (fruit in late fall) in Anne Arundel Co., Maryland (11/21/2015). Photo by Bill Hubick. (MBP list)

Eastern Poison Ivy in Anne Arundel Co., Maryland (6/29/2012). Photo by Bill Harms. (MBP list)

Eastern Poison Ivy growing in Kent Co., Maryland (7/16/2016). Photo by Dan Small. (MBP list)

Eastern Poison Ivy in Montgomery Co., Maryland (12/8/2015). Photo by Mike Ostrowski. (MBP list)

Eastern Poison Ivy in Montgomery Co., Maryland (12/12/2015). Photo by Mike Ostrowski. (MBP list)

Eastern Poison Ivy in Baltimore Co., Maryland (5/20/2016). Photo by Kirsten Johnson. (MBP list)

Eastern Poison Ivy growing in Dorchester Co., Maryland (3/24/2016). Photo by Wayne Longbottom. (MBP list)

An Eastern Poison Ivy leaf hosting a Dimorphic Macalla Moth caterpillar in Howard Co., Maryland (8/27/2016). Photo by Bonnie Ott. (MBP list)

Eastern Poison Ivy growing in Anne Arundel Co., Maryland (10/14/2015). Photo by Matthew Beziat. (MBP list)

Eastern Poison Ivy in Cecil Co., Maryland (9/30/2016). Photo by John Hall. (MBP list)


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