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carpetweed

American  
[kahr-pit-weed] / ˈkɑr pɪtˌwid /

noun

  1. a North American prostrate weed, weed, Mollugo verticillata, having whorled leaves and small, whitish flowers.


Etymology

Origin of carpetweed

An Americanism dating back to 1775–85; carpet + weed 1