Family: Asteraceae Aster Family
Genus: Cirsium Thistle
Spiny, biennial or perennial herbs (rarely annuals). Thistles of the genus Cirsium are distinguished by their feathery pappus from members of the genus Carduus (plumeless or simple pappus).
Scientific Name: Cirsium brevifolium Nutt.
Common Name(s): Palouse Thistle
Growth Type: perennial
Species Description: An native, invasive species.
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