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Pronunciation: SIL-i-bum mare-ee-AY-num
Common name: Milk thistle
Family: Asteraceae (Sunflower)
Habitat: Cismontane roadsides, pastures, waste areas, especially in heavy soils, to about 1500', native of the Mediterranean region, highly invasive
Blooming period: May to July
Name derivations: 1) Silybum 2) marianum