Cirsium arvense (L.) Scop.

Locations ofCirsium arvense (L.) Scop. in Virginia

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Detail

Family
Asteraceae
Botanical Name
Cirsium arvense (L.) Scop.
Common Name
Canada Thistle, Field Thistle
Synonym(s)
Flora of Virginia Name/Status
Cirsium arvense (L.) Scop.
Comments
This is a composite map containing all collection records of both var. arvense and var. horridum; see the varietal maps (incomplete at this time) for verified records of each taxon. See comments under Cirsium arvense var. arvense.
Habitat
A pernicious weed of various open, disturbed habitats that has spread rapidly in Virginia over the last several decades. It is frequent to common in the mountains and northern Piedmont, infrequent to rare (but possibly undercollected) elsewhere.
Native Status
Introduced

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