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Rothrock's Thistle

Cirsium arizonicum var. rothrockii (A. Gray) D. J. Keil

They have achenes.

  • 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 9 attributes, including: