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Montana Field Guide

Montana Field Guides

Northern Green Orchid - Platanthera aquilonis
Other Names:  Platanthera hyperborea [misapplied], Habenaria hyperborea [misapplied]


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 8

External Links






 
General Description
Stems 15–60 cm. Leaves cauline, 3–15 cm long, lanceolate. Inflorescence dense, 3–20 cm long with 8 to 50+ flowers; bracts 1–4 cm long. Flowers yellowish green; lateral sepals 3–6 mm long; hood 2–5 mm long; lip petal 3–5 mm long, narrowly lanceolate, spreading forward; spur cylindric, curved, 3–6 mm long. Capsule 10–15 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Lesica (2012) treats this species as Platanthera hyperborea (L.) Lindl., but also points out the taxonomic difficulties associated with Montana material.

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 75

(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
Often calcareous fens, wet meadows, seeps; montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Northern Green Orchid — Platanthera aquilonis.  Montana Field Guide.  .  Retrieved on , from