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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
C-value: 1

Agency Status


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 et al. 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 et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

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

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Relative Density



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



  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • 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.
    • Schwend, Ann C. 1995. Sclerotium spp for biological control of tall larkspur (Delphinium spp). M.Sc. Thesis. Bozeman, MT: Montana State University. 98 p.
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Citation for data on this website:
Corn Poppy — Papaver rhoeas.  Montana Field Guide.  .  Retrieved on , from