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Project Noah Nature School
Onopordum acanthium
A large purple thistle. Can be distinguished from the similar Bull Thistle because the bract (green part at the base of the flower) is short and squat instead of tall and slender. This plant can get huge, up around 6 feed. Considered a noxious weed here.
open field
Spotted on Jul 15, 2014
Submitted on Oct 24, 2014
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