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Montana Field Guide

Montana Field Guides

Common Corncockle - Agrostemma githago

Non-native Species

Global Rank: GNR
State Rank: SNA

Agency Status
MNPS Threat Rank:
C-value: 1

External Links

General Description
Taprooted annuals with sparsely long-hairy foliage. Stems simple or branched, to 100 cm. Leaves linear-lanceolate, 3–12 cm long, sessile or united around the stem. Inflorescence a few-flowered, terminal, open cyme. Flowers: calyx united into a strongly purple-veined tube, 12–15 mm long and linear lobes 15–30 mm long; petals indistinctly clawed, red, smaller than the calyx lobes; stamens 10; styles 5. Capsule 15–20 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Introduced throughout North America and worldwide; native to Eurasia (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 17

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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?
    • Jones, W. W. 1901. Preliminary flora of Gallatin County. M.S. Thesis. Bozeman, MT: Montana State College. 78 pp.
    • 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:
Common Corncockle — Agrostemma githago.  Montana Field Guide.  .  Retrieved on , from