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Cirsium douglasii
Cirsium douglasii DC.
Douglas' Thistle, California Swamp Thistle
Asteraceae (Aster Family)
Synonym(s):
USDA Symbol: CIDO2
USDA Native Status: L48 (N)
From the Image Gallery
No images of this plant
Plant Characteristics
Duration: Perennial , BiennialHabit: Herb
Size Notes: Up to about 8 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.
Bloom Information
Bloom Color: White , Pink , PurpleBloom Time: Jun , Jul , Aug
Bloom Notes: No ray florets present, only disc florets.
Distribution
USA: CA , NV , ORNational Wetland Indicator Status
Region: | AGCP | AK | AW | CB | EMP | GP | HI | MW | NCNE | WMVE |
Status: | OBL | OBL |
Web Reference
Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.Additional resources
USDA: Find Cirsium douglasii in USDA PlantsFNA: Find Cirsium douglasii in the Flora of North America (if available)
Google: Search Google for Cirsium douglasii
Metadata
Record Modified: 2018-12-11Research By: CBR