Platanthera huronensis (Nutt.) Lindl.

Lake Huron Green Bog Orchid, Tall Green Bog Orchid

Facts About

Accepted Synonyms: Habenaria huronensis, Platanthera hyperborea var. huronensis

Platanthera huronensis, commonly called Lake Huron Bog Green Orchid, is distributed across the northeastern United States and Canada and disjunct populations in western Canada, Alaska, and from New Mexico to Wyoming. It produces several stem leaves and bears an inflorescence of whitish green flowers, which can vary greatly in number. The labellum is often paler than the rest of the flower, and is wider at its base than at its tip. The flowers are typically intensely fragrant. It can be found in wet meadows and woodlands, marshes, fens, bogs, and along riverbanks and roadsides. This orchid is thought to have descended from a cross between Platanthera aquilonis and Platanthera dilatata.

Platanthera huronensis is globally secure, but it is considered rare or threatened in several mid-Atlantic states.


Pollinator information for this orchid has not been widely reported but small insects, mostly mosquitos, may pollinate this orchid.

Ecosystem Type

Alpine or subalpine zones, bogs, disturbed habitats, fens, marshes, meadows, stream bank, tundra, woodlands


Leaf arrangement:
  • alternate
  • stem
Number of leaves on stem:
  • two
  • three
  • four
  • five
  • six
  • seven or more
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:
5–12 mm
Sepal length:
5–8 mm
Plant height:
10–105 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