[
Thistles: The Genus
Cirsium
West of the Cascade Mountains of Oregon and Washington
]
Bull Thistle, Common Thistle
Cirsium vulgare
Synonym:
Carduus vulgare
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Several close-ups of the leaves and flower head of bull thistle as seen along the road to Bird Creek Meadows.......August 8, 2004.
Paul Slichter
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