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Montana Field Guide

Montana Field Guides

Prairie Broomspurge - Euphorbia missurica
Other Names:  Chamaesyce missurica

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Native Species

Global Rank: G5
State Rank: SNR

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General Description
Glabrous annual. Stems ascending to erect, 20–80 cm, highly branched. Leaves linear to linear-oblong, rounded to emarginate at the apex, oblique at the base, entire, 5–20 mm long. Inflorescence: a solitary cyathia in leaf axils. Cyathia 1–2 mm long; glands with white margins. Capsule 2–3 mm long; seeds smooth to obscurely wrinkled (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
MT to MN south to NM and TX (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 1

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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.
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Citation for data on this website:
Prairie Broomspurge — Euphorbia missurica.  Montana Field Guide.  .  Retrieved on , from