A tiny European pimpernel with pink or white flowers.
- ‘A. minima (chaffweed) is a small, spreading annual with alternate, oval, stalkless leaves.’
- ‘Alvan W. Chapman first collected chaffweed in the mid 1800s along the Caloosahatchee River (s.n., US), presumably in Lee County.’
- ‘We have also found smooth boisduvalia and chaffweed under irrigation pivots in cultivated fields, and sand verbena is found in open, shifting sand dunes.’
Mid 16th century: probably from the verb chafe + weed.
We take a look at several popular, though confusing, punctuation marks.