• synonyms


[ground-suh l]
  1. any composite plant of the genus Senecio, especially S. vulgaris, a common weed having clusters of small yellow disk flowers without rays.
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Origin of groundsel1

before 900; Middle English grundeswili(e), groundeswel, Old English grundeswelge, gundeswelge; compare Old English gund pus, swelgan to swallow, absorb (from its use in medicine); the -r- is by folk etymology from association with ground1


[ground-suh l]
  1. groundsill.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for groundsel


  1. any of certain plants of the genus Senecio, esp S. vulgaris, a Eurasian weed with heads of small yellow flowers: family Asteraceae (composites)See also ragwort
  2. groundsel tree a shrub, Baccharis halimifolia, of E North America, with white plumelike fruits: family Asteraceae
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Word Origin

Old English grundeswelge, changed from gundeswilge, from gund pus + swelgan to swallow; after its use in poultices on abscesses
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012