thimbleweed

[ thim-buhl-weed ]

noun

1. any of several plants having a thimble-shaped fruiting head, especially either of two white-flowered North American plants, Anemone riparia or A. virginiana.

thimbleweed

/ ˈθɪmbəlˌwiːd /

noun

1. any of various plants having a thimble-shaped fruit, esp an American anemone, Anemone virginiana, and a rudbeckia, Rudbeckia laciniata

Word History and Origins

Origin of thimbleweed¹

An Americanism dating back to 1825–35; thimble + weed ¹