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Cirsium occidentale

Family: asteraceae
Common name(s): Cobweb Thistle

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• GRIN. Taxonomical details, with common names, distribution, and synonyms.

Links for Cirsium occidentale

• Annie's Annuals - Catalog page with photo, basic horticultural information, and noteworthy features. (zone 9-10) (2 photos)
• Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments.
• Turner Photographics - Profile of wildflower of the US Pacific Northwest, with botanical description, habitat and distribution, and photo gallery.

Cirsium occidentale var. californicum

Common name(s): California Thistle
Synonym(s): Cirsium californicum

Links

• Las Pilitas Nursery - Catalog page about this California native, with description and horticultural basics. (zone 6 to 10) (1 photo)

Cirsium occidentale venustum

Common name(s): Red Thistle, Venus Thistle

Links

• Las Pilitas Nursery - Catalog page about this California native, with description and horticultural basics. (zone 7 to 10) (9 photos)