Garland Ranch Regional Park
Bull Thistle
Bull Thistle
Scientific name:
Cirsium vulgare
Family: sunflower or Asteraceae
Genus: Cirsium
Tribe: Cynareae or thistle
Blooms: May - Oct
Plant Height: 0.3 - 2
Origin: Europe
Habitat: Disurbed places
About: Unlike the other Cirsium species on this page, this is alien and invasive — and later blooming. It has a large, round to vase-shape head and purple (occasionally white) flowers. Leaves are large, with long sharp spines at their tips, and they extend up the stem to just below the flower head.
*For more information about the family of flowers please click here!