smart·​weed | \ ˈsmärt-ˌwēd How to pronounce smartweed (audio) \

Definition of smartweed

: any of various polygonums with strong acidic juice

Examples of smartweed in a Sentence

Recent Examples on the Web Grasses and leaves of golden rod, chickweed, smartweed, leaves and shoots from woody plants like blackberry, raspberry, and multiflora rose. Tom Keer, Field & Stream, "Where to Take a Rabbit Super Slam," 20 Nov. 2020 Vegetation like Pennsylvania smartweed, wild barnyard grass, and nutsedge draw ducks. Joe Arterburn, Outdoor Life, "12 Rules for Decoying Ducks and Geese," 13 Dec. 2019 Whereas Perkins Tank is surrounded mostly by pine-oak woodlands, this pond swells with willows and aquatic plants including acres of water smartweed and emerald green marshes. Mare Czinar, azcentral, "Fun summer hikes in Arizona: These hidden little lakes attract wildlife, hikers and anglers," 5 July 2019

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

See More

First Known Use of smartweed

circa 1787, in the meaning defined above

Keep scrolling for more

Learn More about smartweed

Time Traveler for smartweed

Time Traveler

The first known use of smartweed was circa 1787

See more words from the same year

Statistics for smartweed

Last Updated

6 Dec 2020

Cite this Entry

“Smartweed.” Dictionary, Merriam-Webster, Accessed 25 Jan. 2021.

Comments on smartweed

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


Test Your Vocabulary

Slippery Words Quiz—Changing with the Times

  • ducreux self portrait yawning
  • What is an earlier meaning of nice?
True or False

Test your knowledge - and maybe learn something along the way.

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

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