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Canada Thistle

Cirsium arvense

Photo by BlueAppaloosa
Published on Project Noah
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39.6049, -105.141

Field Notes

Description:

Small purple thistles, about and inch across and two inches long. The plant grows up to around three feet tall. Spiky thistle leaves. Considered a noxious weed here.

Habitat:

open field

Species ID Suggestions

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Flowers in the Rocky Mountains - UT, CO, WY
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PublishedOctober 27, 2014

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