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Montana Field Guide

Montana Field Guides

Pale Rough-fruit Poppy - Papaver argemone
Other Names:  Prickly Poppy, Long Pricklyhead Poppy, Pale Poppy, Roemeria argemone

Image Copyright and Usage Information
Non-native Species

Global Rank: GNR
State Rank: SNA
(see State Rank Reason below)
C-value: 1


Agency Status
USFWS:
USFS:
BLM:


 





State Rank Reason (see State Rank above)
Papaver argemone is not documented in Montana (MTNHP Status Review 2026). It was included in the Manual of Montana Vascular Plants (Lesica et al. 2022) based on a specimens collected in Ravalli County in 1974 and deposited at the University of Montana Herbarium (MONTU 75532 ). However, the original identification was incorrect and in 2026 was annotated to Papaver dubium by botanist Scott Mincemoyer. A conservation status rank is not applicable (SNA) because this forb is not known to occur in Montana.

NOTE: Potential specimens should be sent to a State herbaria (University of Montana, Montana State University, or Montana State University-Billings) for verification. Herbarium specimens allow identifications to be confirmed, provide a central location for educating and information sharing, are a source for genetic, morphological, and ecological research, and are the basis on which Montana's floras are written.
 
General Description
Annual with hispid foliage. Stems 15–50 cm, simple or branched. Leaf blades twice pinnately divided, to 12 cm long. Flowers solitary on branch tips; petals red with a black base, to 25 mm long. Capsules oblong, 15–20 mm long with stiff hairs (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range Range Descriptions

Non-native
 


Range Comments
Sporadic throughout the U.S.; introduced from Europe. Collected in Ravalli County (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat
Escaped from cultivation to roadsides and disturbed fields, though populations do not persist; valleys (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Management


References
  • 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?
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
  • Web Search Engines for Articles on "Pale Rough-fruit Poppy"
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Citation for data on this website:
Pale Rough-fruit Poppy — Papaver argemone.  Montana Field Guide.  .  Retrieved on , from