poison sumac


Definition of poison sumac

: a swamp shrub (Toxicodendron vernix synonym Rhus vernix) chiefly of the eastern U.S. and Canada that has pinnate leaves, greenish flowers, and greenish white berries and produces an irritating oil

called also poison dogwood

Examples of poison sumac in a Sentence

Recent Examples on the Web Calabrese points to populations of poison sumac in the Brecksville and Hinckley Reservations, though the plant is found only in bogs, all of which are well beyond the park district’s trail network. cleveland, "Poison ivy and other pesky plants can turn summer fun into a season of suffering," 30 June 2020 What is the difference between poison ivy, poison sumac, and poison oak? Everyday Einstein Sabrina Stierwalt, Scientific American, "What Do Cashews, Mangoes and Poison Ivy Have in Common?," 26 Jan. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'poison sumac.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of poison sumac

1737, in the meaning defined above

Keep scrolling for more

Learn More about poison sumac

Time Traveler for poison sumac

Time Traveler

The first known use of poison sumac was in 1737

See more words from the same year

Statistics for poison sumac

Cite this Entry

“Poison sumac.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/poison%20sumac. Accessed 1 Dec. 2020.

Keep scrolling for more

More Definitions for poison sumac

poison sumac


English Language Learners Definition of poison sumac

: a common bush in the eastern U.S. and Canada that causes a very itchy and painful rash on your skin if you touch it

poison sumac


Kids Definition of poison sumac

: a shrub or small tree related to poison ivy that can cause an itchy painful rash when touched

poison sumac

poison su·​mac | \ -ˈs(h)ü-ˌmak How to pronounce poison sumac (audio) \

Medical Definition of poison sumac

: an American swamp shrub of the genus Rhus (R. vernix synonym Toxicodendron vernix) that has smooth pinnate leaves, greenish flowers, and greenish white berries and produces an irritating oil

called also poison dogwood

More from Merriam-Webster on poison sumac

Britannica.com: Encyclopedia article about poison sumac

Comments on poison sumac

What made you want to look up poison sumac? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!