'Senecio vulgaris' definitions:

Definition of 'Senecio vulgaris'

noun

Eurasian weed with heads of small yellow flowers [syn: groundsel, Senecio vulgaris]

From: GCIDE

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. Groundsel