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Yellow Thistle

Cirsium horridulum Michx.

2014 Richard Spellenberg   cc-by-nc-sa-3.0

Cirsium horridulum (Yellow Thistle) is a species of annual herb in the family Asteraceae. They are native to The Contiguous United States and Eastern North America. They have achenes. Flowers are visited by Osmia chalybea, Palamedes Swallowtail, Cloudless Sulphur, and Protographium marcellus.

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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 14 attributes, including:

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