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Montana Field Guide

Montana Field Guides

Small Northern Bog Orchid - Platanthera obtusata
Other Names:  Habenaria obtusata

Native Species

Global Rank: G5
State Rank: S4
C-value: 7


Agency Status
USFWS:
USFS:
BLM:


 

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General Description
Stems scapose, 6–20 cm. Leaves basal, petiolate, solitary; blade 3–10 cm long, oblong to elliptic. Inflorescence open, 2–8 cm long with 2 to 12 flowers; bracts 5–15 mm long. Flowers greenish white; lateral sepals 3.5–5 mm long; hood 2–4 mm long; lip petal 3–5 mm long, nearly linear, reflexed parallel to the spur; spur slender and curved, 4–7 mm long. Capsule 6–8 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Montana plants are subspecies obtusata.

Species Range
Montana Range

Year-round
 


Range Comments
Circumboreal south to OR, UT, CO, WI and NY (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 63

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Coniferous forest-fen ecotones, wet meadows, often beneath spruce; montane (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
  • 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.
  • Web Search Engines for Articles on "Small Northern Bog Orchid"
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Citation for data on this website:
Small Northern Bog Orchid — Platanthera obtusata.  Montana Field Guide.  .  Retrieved on , from