Cirsium scariosum var. robustum
Shasta Valley Thistle
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Cirsium scariosum var. robustum (commonly known as Shasta Valley thistle) is a plant within the Asteraceae family. It is found natively in North America. It is a naturally occurring variety of Cirsium scariosum, which is linked below, along with other varieties of this species.
Macro Climate
Unspecified
Plant Type
Unclassified
Native Range
Continents (WGSRPD)
NORTHERN AMERICA
Regions (WGSRPD)
Northwestern U.S.A., Southwestern U.S.A.
Botanical Countries (WGSRPD L3)
California, Oregon
Base Species & Variations