Cirsium (Thistle) is a genus of herb in the family Asteraceae. They are native to Puerto Rico, North America, Greenland, Canada, Alaska, Saint-Pierre Et Miquelon, and The Contiguous United States. They have achene. Flowers are visited by Unarmed Leaf-cutter Bee, Cloudless Sulphur, Bombus diversus, and Melissodes desponsus.

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  • URI: http://purl.obolibrary.org/obo/PO_0030107
  • Definition: a fruit which develops from a carpel or gyneocium and at maturity comprises a dry exocarp, a dry mesocarp, and a dry endocarp that are connected to a seed coat by a funicle
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EOL has data for 12 attributes, including:

Known occurrences, collected specimens and observations of thistle. View this species on GBIF