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Montana Field Guide

Montana Field Guides

Corn Poppy - Papaver rhoeas
Other Names:  Common Poppy, Corn Rose, Red Poppy, Flanders Poppy

Non-native Species

Global Rank: GNR
State Rank: SNA

Agency Status
MNPS Threat Rank:
C-value: 1

External Links

General Description
Perennial with hispid foliage. Stems usually simple, 30–70 cm. Leaves petiolate, to 30 cm long; blades entire or lobed. Flowers long-stalked, solitary from upper leaf axils; petals orange to red, ca. 5 cm long. Capsules glabrous, glaucous, globose to ovoid, 15–25 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX). Lesica (2012: 105) believes that MT specimens of P. rhoeas are referable to P. orientale.

Range Comments
One collection from Ravalli County (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 3

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)



  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Burns, E.E. 2017. Genetic and physiological characterization and ecological management of non-target site resistance in multiple herbicide resistant Avena fatua L. Ph.D. Dissertation. Bozeman, MT: Montana State University. 175 p.
    • Burns, E.E., B.K. Keith, L.E. Talbert, and W.E. Dyer. 2018. Non-target site resistance to flucarbazone, imazamethabenz and pinoxaden is controlled by three linked genes in Avena fatua. Weed Research 58, no. 1 (February 2018): 8-16.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
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Citation for data on this website:
Corn Poppy — Papaver rhoeas.  Montana Field Guide.  .  Retrieved on , from