The Gardens has 3 native thistles: Edible Thistle, Clustered Thistle (Indian Thistle), and Weak Thistle (Few-Leaved Thistle). Edible Thistle, also called Indian Thistle, is most likely found in areas that are moist and open. Another “Indian Thistle,” also called Clustered Thistle, is most likely found in areas
that are moist and shady. And then there’s the Bull Thistle. All herbs and members of the Asteraceae Family, they grow by Kiosk 05 (where planted … and on their own, elsewhere). Pilchuck Learning Center’s sponsored Western Washington State University SAM Project extinction possibility is slight; abundant, moist and shady, also found in the Rocky Mountains with little chance of extinction.
http://naeb.brit.org/uses/search/?string=Cirsium+brevistylum
https://burkeherbarium.org/imagecollection/taxon.php?Taxon=Cirsium%20brevistylum
https://en.wikipedia.org/wiki/Cirsium_brevistylum
https://plants.usda.gov/core/profile?symbol=CIBR2
http://www.burkemuseum.org/research-and-collections/botany-and-herbarium/collections/database/results.php?Genus=Cirsium&Species=brevistylum&SourcePage=search.php&IncludeSynonyms=Y&SortBy=DESC&SortOrder=Year
https://plants.usda.gov/core/profile?symbol=CIED
https://en.wikipedia.org/wiki/Cirsium_brevistylum
https://en.wikipedia.org/wiki/Cirsium_remotifolium
http://www.burkemuseum.org/research-and-collections/botany-and-herbarium/collections/database/results.php?Genus=Cirsium&Species=edule&SourcePage=search.php&IncludeSynonyms=Y&SortBy=DESC&SortOrder=Year
http://www.burkemuseum.org/research-and-collections/botany-and-herbarium/collections/database/results.php?Genus=Cirsium&Species=remotifolium&SourcePage=search.php&IncludeSynonyms=Y&SortBy=DESC&SortOrder=Year
http://naeb.brit.org/uses/search/?string=Cirsium+edule
https://burkeherbarium.org/imagecollection/taxon.php?Taxon=Cirsium%20edule
Of the 8 thistles native to BC, Oregon, and Washington only these 3 grow in Cascadia. The other 5 grow:
to the east
to the west
to the north
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