Tall Thistle Cirsium altissimum (Linnaeus) Sprengel  Synonyms: Carduus altissimus.

There are 13 records in the project database.

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Field Thistle in Allegany Co., Maryland (9/12/2026). Photo by Kimberly Booth. (MBP list)

Tall Thistle in Allegany Co., Maryland (9/12/2026). Photo by Kimberly Booth. (MBP list)

Tall Thistle in Grant Co., Wisconsin (9/2/2012). Photo by Corey Raimond. (MBP list)

Tall Thistle in Grant Co., Wisconsin (9/2/2012). Photo by Corey Raimond. (MBP list)


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