Meaning : Tall Old World biennial thistle with large clasping white-blotched leaves and purple flower heads. Naturalized in California and South America.
Synonyms : holy thistle, lady's thistle, milk thistle, our lady's mild thistle, silybum marianum
Meaning : Annual of Mediterranean to Portugal having hairy stems and minutely spiny-toothed leaves and large heads of yellow flowers.
Synonyms : cnicus benedictus, sweet sultan