Platanthera aquilonis Sheviak

Northern Green Orchid, North Wind Bog Orchid

Facts About

Accepted Synonyms: Limnorchis aquilonis, Platanthera hyperborea f. alba

Platanthera aquilonis, commonly called North Wind Bog Orchid, is widely distributed throughout western and central Canada, Alaska, the western and northern United States, as well as in the northern mid-Atlantic and New England. It produces an inflorescence of a few to many small, yellowish green flowers with an elongated, tapered labellum. The leaves along its stem taper to bracts near the flowers. It can be found in moist meadows, marshes, fens, and bogs, as well as along roadsides and riverbanks. Although it shares a similar habitat as Platanthera dilatata, it can be distinguished by its green instead of white flowers and its tapered labellum.

Platanthera aquilonis is considered globally secure.


The flowers are commonly self-pollinating: the pollinia rotate forward and downward out of the pollen sacs and deposit pollen on the stigma, or the pollen spills in a stream from the pollen sacs onto the stigma.

Ecosystem Type

Disturbed habitats, fens, floodplains, forests, marshes, meadows, prairie, stream bank, swamps, tundra


Leaf arrangement:
Number of leaves on stem:
  • two
  • three
  • four
  • five
  • six
Form of the labellum:
the labellum is not pouch-like
Labellum outline:
the labellum is simple
Main color of labellum:
  • green to brown
  • white
  • yellow
Nectar spur:
Inflorescence type:
the inflorescence is a raceme
Labellum characteristics:
  • the labellum has a spur
  • the labellum is simple
Labellum length:
2.5–6 mm
Plant height:
15–75 cm
Show All Characteristics

Native to North America


North American Conservation Status & Distribution

Conservation Status

Select a location to view conservation status:

Conservation and Wetland Status
Global Rank Secure
US Status N/A
Canadian Status Secure

North America Distribution

Adapted from USDA data