milk thistle

milk thistle

n

(Life Sciences & Allied Applications / Plants) another name for sow thistle

Thesaurus

Noun	1.	milk thistle - any of several Old World coarse prickly-leaved shrubs and subshrubs having milky juice and yellow flowers; widely naturalized; often noxious weeds in cultivated soil sow thistle genus Sonchus, Sonchus - sow thistles Sonchus oleraceus, milkweed - annual Eurasian sow thistle with soft spiny leaves and rayed yellow flower heads bush, shrub - a low woody perennial plant usually having several major stems
	2.	milk thistle - tall Old World biennial thistle with large clasping white-blotched leaves and purple flower heads; naturalized in California and South America blessed thistle, holy thistle, lady's thistle, Our Lady's mild thistle, Silybum marianum genus Silybum, Silybum - small genus of east African herbs herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests