smartweed

smartweed is defined in Webster's Unabridged Dictionary (1913) with 1 sense. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.An acrid plant of the genus Polygonum (P. Hydropiper), which produces smarting if applied where the skin is tender.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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