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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 Nemognatha piazata, Ruby-throated Hummingbird, Brown-belted Bumblebee, and Southern Carpenter Bee.

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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 yellow thistle. View this species on GBIF