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Wind Cave National ParkFalse Gromwell Seedling
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Wind Cave National Park
Seed Study - Onopordum acanthium
Onopordum acanthium - Scotch Thistle

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Onopordum acanthium - Scotch Thistle

Species: Onopordum acanthium
Common name: Scotch thistle

Seedling Identification: Beware of confusing this one (in the seedling stage) with the native thistle Cirsium undulatum. There is no reliable way to differentiate between the species until the plants get some size and age.

 
Blue Flax  

Did You Know?
Blue Flax is often considered a subspecies of the Eurasian L. perenne which is very similar. The plant is named after Meriwether Lewis.
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Last Updated: September 27, 2007 at 15:18 EST