PLANTS Profile for Cirsium occidentale var. occidentale (cobwebby thistle)

Name Search
name search type enter a search name
	State Search
	Advanced Search
	Search Help


	Alternative Crops
	Characteristics
	Classification
	Cover Crops
	Culturally Significant
	Distribution Update
	Documentation
	Fact Sheets & Plant Guides
	Introduced, Invasive, and Noxious Plants
	Links
	Threatened & Endangered
	Wetland Indicator Status



	40,000+ Plant Images
	Submit Your Digital Images



	Complete PLANTS Checklist
	State PLANTS Checklist
	Advanced Search Download
	Symbols for Unknown Plants
	NRCS State GSAT Lists
	NRCS State Plants Lists



	Crop Nutrient Tool
	Ecological Site Information System
	PLANTS Identification Keys
	Plant Materials Web Site
	Plant Materials Publications
	USDA Plant Hardiness Map

Printer-Friendly

PLANTS Profile

Cirsium occidentale (Nutt.) Jeps. var. occidentale
cobwebby thistle

Symbol:

CIOCO

Group:

Dicot

Family:

Asteraceae

Duration:

Biennial

Growth Habit:

Forb/herb

Native Status:

L48

Click on the image below to enlarge it and download a high-resolution JPEG file.

Photo of Cirsium occidentale (Nutt.) Jeps. var. occidentale

Cirsium coulteri

Brother Alfred Brousseau. Courtesy of St. Mary's College of California. ©St. Mary's College of California. Usage Requirements. Any use of copyrighted images requires permission of the copyright holder.

More Information:

Images:
Cirsium occidentale (Nutt.) Jeps. var. occidentale

See all the Cirsium thumbnails at the PLANTS Gallery

Synonyms:
Cirsium occidentale (Nutt.) Jeps. var. occidentale

CICO6

Cirsium coulteri Harv. & A. Gray

Distribution:
Cirsium occidentale (Nutt.) Jeps. var. occidentale


View Native Status

See U.S. county distributions (when available) by clicking on the map or the linked states below:
USA (CA)

Related Taxa:
Cirsium occidentale (Nutt.) Jeps. var. occidentale

View 480 genera in Asteraceae, 95 species in Cirsium, 5 varieties in Cirsium occidentale (Nutt.) Jeps.

Classification:
Cirsium occidentale (Nutt.) Jeps. var. occidentale

Click on a scientific name below to expand it in the PLANTS Classification Report.


Kingdom	Plantae – Plants
Subkingdom	Tracheobionta – Vascular plants
Superdivision	Spermatophyta – Seed plants
Division	Magnoliophyta – Flowering plants
Class	Magnoliopsida – Dicotyledons
Subclass	Asteridae
Order	Asterales
Family	Asteraceae – Aster family
Genus	Cirsium Mill. – thistle
Species	Cirsium occidentale (Nutt.) Jeps. – cobwebby thistle
Variety	Cirsium occidentale (Nutt.) Jeps. var. occidentale – cobwebby thistle

Noxious Weed Information:
Cirsium occidentale (Nutt.) Jeps. var. occidentale

The related entities italicized and indented above are listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete noxious weed list for that location, or click here for a composite list of all Federal and State Noxious Weeds.

Arkansas:
Cirsium
thistle		Noxious weed
Iowa:
Cirsium
thistle		Primary noxious weed

U.S. Weed Information:
Cirsium occidentale (Nutt.) Jeps. var. occidentale

Cirsium
thistle

The related entity italicized and indented above can be weedy or invasive according to the authoritative sources noted below. This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S.

STATE

Assorted authors. 200_. State noxious weed lists for 46 states. State agriculture or natural resource departments.

More Accounts and Images:
Cirsium occidentale (Nutt.) Jeps. var. occidentale

View photographs from CalPhotos.

View taxonomic account from Integrated Taxonomic Information System (ITIS) for ITIS Taxonomic Serial Number 527377.

View species account and distribution map from Jepson Interchange (University of California - Berkeley).

View species account and photographs from Lady Bird Johnson Wildflower Center Native Plant Information Network (NPIN).

Time Generated: 06/19/2013 06:15 PM CDT