lady's-thistle

[ ley-deez-this-uh l ]
/ ˈleɪ dizˌθɪs əl /

noun

a composite plant, Silybum marianum, of the Mediterranean region, having glossy, spiny leaves and purplish-red flower heads.

Origin of lady's-thistle

First recorded in 1545–55
Also called holy thistle, milk thistle.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019