Groundsel \Ground"sel\, n. [OE. grundswilie, AS. grundeswylige, grundeswelge, earlier gundiswilge; gund matter, pus + swelgan to swallow. So named as being good for a running from the eye. See {Swallow}, v.] (Bot.) An annual composite plant ({Senecio vulgaris}), one of the most common and widely distributed weeds on the globe.
Senecio vulgaris n : Eurasian weed with heads of small yellow flowers [syn: {groundsel}]