Platanthera zothecina (L.C.Higgins & S.L.Welsh) Kartesz & Gandhi

Alcove Bog Orchid

Facts About

Accepted Synonyms: Habenaria zothecina, Limnorchis zothecina

Platanthera zothecina, the Alcove Bog Orchid, appears to be restricted to the upper Colorado River watershed in southeastern Utah, northeastern Arizona and extreme western Colorado. It produces a loose cluster of yellow-green flowers in July and early August on plants that may be up to 60 cm tall. Platanthera zothecina can be distinguished by its spur length, which may be up to twice as long as the labellum, and its succulent, whitish-green leaves usually limited to the lower portion of the stem. This orchid prefers canyon seeps, hanging gardens, and moist stream banks in mixed desert scrub communities.

Platanthera zothecina is considered rare and imperiled throughout its range. Herbivory, rather than threats from human impact, adversely affects fruit set and possibly long-term recruitment for this orchid.


Pollinator information for this orchid has not been reported.

Ecosystem Type

Meadows, ridges or ledges, seeps, shrublands or thickets, stream bank


Leaf arrangement:
  • alternate
  • basal
  • stem
Number of leaves on stem:
  • three
  • four
Form of the labellum:
the labellum is not pouch-like
Labellum outline:
the labellum is simple
Main color of labellum:
Nectar spur:
Inflorescence type:
the inflorescence is a raceme
Labellum characteristics:
the labellum has a spur
Labellum length:
5–12 mm
Plant height:
15–60 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 Imperiled
US Status N/A
Canadian Status N/A

North America Distribution

Adapted from USDA data