groundsel

¹ American  

[ground-suhl] / ˈgraʊnd səl /

noun

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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groundsel ² American  

[ground-suhl] / ˈgraʊnd səl /

noun

1. groundsill.

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groundsel British  

/ ˈɡraʊnsəl /

noun

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. a shrub, Baccharis halimifolia, of E North America, with white plumelike fruits: family Asteraceae

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Etymology

Origin of groundsel

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 ground ¹