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Image of Rothrock's knapweed
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Rothrock's Knapweed

Plectocephalus rothrockii (Greenm.) D. J. N. Hind

2015 Richard Spellenberg   cc-by-nc-sa-3.0

Plectocephalus rothrockii (Rothrock's Knapweed) is a species of annual herb in the family Asteraceae. They are native to The Contiguous United States. They have achenes. Flowers are visited by Hylocharis leucotis, Papilio rumiko, Rufous Hummingbird, and Black Swallowtail.

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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 13 attributes, including:

Known occurrences, collected specimens and observations of Rothrock's knapweed. View this species on GBIF