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Montana Field Guide

Montana Field Guides

Cornspurry - Spergula arvensis

Non-native Species

Global Rank: GNR
State Rank: SNA
C-value: 0

Agency Status


External Links

General Description
Annual, glabrous below, glandular-hairy above. Stems erect to ascending, 10–40 cm. Leaves fascicled, appearing whorled, 1-veined; stipules scarious, white, 1 mm long. Inflorescence glandular-hairy, terminal, few-flowered cymes, or solitary and axillary. Flowers: sepals 5, 2–3 mm long, united at the base, margins scarious; petals 5, white with entire margins, shorter than the calyx; stamens 2 to 10; styles 5. Capsule ovoid, 3–5 mm long, opening by 6 slits (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range


Range Comments
Introduced in most of temperate North America; native to Europe (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 28

(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)



  • 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?
    • Buchanan, B.A. 1972. Ecological effects of weather modification, Bridger Range area, Montana: relationship of soil, vegetation, and microclimate. Ph.D. Dissertation. Montana State University, Bozeman. 130 p.
    • Harvey, S.J. 1990. Responses of steppe plants to gradients of water soil texture and disturbance in Montana, U.S.A. Ph.D. Thesis. Bozeman, MT: Montana State University. 34 p.
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Citation for data on this website:
Cornspurry — Spergula arvensis.  Montana Field Guide.  .  Retrieved on , from