Milk thistle Moderate

Milk thistle has 3 different meanings across 1 category:

Definitions

Noun

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 milk thistle

tall Old World biennial thistle with large clasping white-blotched leaves and purple flower heads; naturalized in California and South America

milk thistle lady's thistle Our Lady's mild thistle holy thistle blessed thistle Silybum marianum

Any of the thistles in the genus Silybum, especially Silybum marianum.