Canada thistle
Cirsium arvense (L.) Scop.

Resources

Selected Images


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1459761

Canada thistle
Cirsium arvense
Flower(s)
Steve Dewey
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1358360

Canada thistle
Cirsium arvense
Flower(s)
Mary Ellen (Mel) Harte
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1459758

Canada thistle
Cirsium arvense
Flower(s)
Steve Dewey
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5270081

Canada thistle
Cirsium arvense
Foliage
Leslie J. Mehrhoff
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1358355

Canada thistle
Cirsium arvense
Foliage
Mary Ellen (Mel) Harte
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1196009

Canada thistle
Cirsium arvense
Infestation
UAF Cooperative Extension Archive
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1196013

Canada thistle
Cirsium arvense
Flower(s)
Michael Shephard
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1196252

Canada thistle
Cirsium arvense
Plant(s)
UAF Cooperative Extension Archive
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1237095

Canada thistle
Cirsium arvense
Plant(s)
Dan Tenaglia
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1265114

Canada thistle
Cirsium arvense
Plant(s)
Peggy Greb
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1334022

Canada thistle
Cirsium arvense
Flower(s)
Chris Evans
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1358350

Canada thistle
Cirsium arvense
Plant(s)
Mary Ellen (Mel) Harte
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1358358

Canada thistle
Cirsium arvense
Plant(s)
Mary Ellen (Mel) Harte
1459754
1459754

Canada thistle
Cirsium arvense
Infestation
Steve Dewey
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1929056

Canada thistle
Cirsium arvense
Infestation
Alec McClay
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5307004

Canada thistle
Cirsium arvense
Plant(s)
USDA PLANTS Database
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5307006

Canada thistle
Cirsium arvense
Plant(s)
USDA PLANTS Database

Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

State Regulated List

Most Troublesome / Most Common Agricultural Weed List
This map identifies those states that consider this species either most troublesome or most common in at least one commodity. For more information, visit the MTMC project page.

State Regulated List
Legend
   No Data for this state
   Troublesome or Common weed in one or more crops

Invasive Listing Sources

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Asterales
Family: Asteraceae
Genus: Cirsium

Other System Links

Plants: CIAR4
Bayer: CIRAR
GRIN: 100755
ITIS: 36335
NPDN Pest: PBFAWBB
NPDN Host: 31702

Synonyms and Other Names

Other Common Names:
Californian thistle, creeping thistle, field thistle

Related Scientific Names:

Breea arvensis (L.) Scop.(Synonym)
Breea incana (L.) Scop.(Synonym)
Carduus arvensis (L.) Scop.(Synonym)
Cirsium incanum (L.) Scop.(Synonym)
Cirsium setosum (L.) Scop.(Synonym)
Serratula arvensis (L.) Scop.(Synonym)

Categories

Category: Forbs/Herbs