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Montana Field Guide

Montana Field Guides

Scouler's Catchfly - Silene scouleri

Native Species

Global Rank: G5
State Rank: S4

Agency Status


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General Description
Pubescent perennial from a simple or branched caudex. Stems simple, 10–40 cm. Leaves: basal oblanceolate, 7–15 cm long; cauline lanceolate, 1–12 cm long. Inflorescence spike-like with 3 to 6 glandular, congested cymes. Flowers: calyx campanulate, 10-veined, 12–18 mm long; petals white, the blade 2–8 mm long, 2–4-lobed with 2 appendages; styles 3. Capsules ellipsoid, equaling the calyx, opening by 6 to 8 slits. Grassland, steppe, open forest; montane (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are subspecies hallii (S. Watson) C.L. Hitchc. & Maguire.

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


The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus vagans, Bombus pensylvanicus, and Bombus impatiens (Colla and Dumesh 2010).

  • Literature Cited AboveLegend:   View Online Publication
    • Colla, S.R. and S. Dumesh. 2010. The bumble bees of southern Ontario: notes on natural history and distribution. Journal of the Entomological Society of Ontario 141: 39-68.
    • 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
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    • Quire, R.L. 2013. The sagebrush steppe of Montana and southeastern Idaho shows evidence of high native plant diversity, stability, and resistance to the detrimental effects of nonnative plant species. M.Sc. Thesis. Bozeman, MT: Montana State University. 124 p.
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Citation for data on this website:
Scouler's Catchfly — Silene scouleri.  Montana Field Guide.  .  Retrieved on , from