Cirsium arvense
Cirsium arvense Canadian thistle
![Plant grows in the wild/spontaneously Plant grows in the wild/spontaneously](/Modules/Zulatm.WebPlants/Content/WildIcon.png)
![Plant is invasive in PA Plant is invasive in PA](/Modules/Zulatm.WebPlants/Content/InvIcon.png)
This is one of our most common thistles that blooms in fields, pastures, and along roadsides during the latter half of the summer. The flowerheads are many and of pale lilac color. This thistle is designated as a noxious weed in Pennsylvania.
Habitat & Range
Common in fields, pastures, along roadsides, and waste ground.
Present throughout the state.
Wetland codes
EMP: | FACU |
---|---|
NCNE: | FACU |
Phenology
Flowers June to September.