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Montana Field Guide

Montana Field Guides

Slender Bog Orchid - Platanthera stricta
Other Names:  Habenaria saccata, Habenaria stricta, Limnorchis saccata, Platanthera saccata

Native Species

Global Rank: G5
State Rank: S4

Agency Status
MNPS Threat Rank:
C-value: 7

External Links

General Description
Stems 20–80 cm. Leaves cauline, 3–12 cm long, oblong to lanceolate. Inflorescence 6–25 cm long with 5 to 40 flowers; bracts 6–40 mm long. Flowers yellowish green; lateral sepals 3–7 mm long; hood 2–5 mm long; lip petal 4–6 mm long, narrowly lanceolate, pendent; spur sac-like, shallowly 2-lobed, 2–4 mm long. Capsule 8–11 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range

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

Observations in Montana Natural Heritage Program Database
Number of Observations: 116

(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)

Wet meadows, fens, thickets, moist forest openings, more common in non-calcareous soils; valleys to lower subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

  • Literature Cited AboveLegend:   View Online Publication
    • Hitchcock, C. L., A. Cronquist, M. Ownbey, and J. W. Thompson. 1969. Vascular Plants of the Pacific Northwest. Part I: Vascular Cryptogams, Gymnosperms and Monocotyledons. Seattle, WA: University of Washington Press. 914 pp.
    • 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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    • Culver, D.R. 1994. Floristic analysis of the Centennial Region, Montana. M.Sc. Thesis. Montana State University, Bozeman. 199 pp.
  • Web Search Engines for Articles on "Slender Bog Orchid"
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Citation for data on this website:
Slender Bog Orchid — Platanthera stricta.  Montana Field Guide.  .  Retrieved on , from