Platanthera convallariifolia (Fisch. ex Lindl.) Lindl.
Bog Orchid, Cornflower
Facts About
Accepted synonyms: Habenaria convallariifolia, Limnorchis convallariifolia, Orchis convallariifolia, Platanthera hyperborea var. convallariifolia
Platanthera convallariifolia, commonly known as Bog Orchid or Cornflower, has a range that extends from Alaska's Prince William Sound, through the Aleutians, to Kamchatka and northern Japan. It grows in wet meadows, tundra, marshes, fens, stream banks, shores, and seeping slopes. The height ranges from 15 to 100 cm with lance-shaped leaves that clasp the single stout stem. The spike has fragrant, moderately dense whitish-green or greenish-yellow flowers. The lateral sepals are spreading. The labellum is descending and lance-shaped. The nectar spur is 2/3 to slightly shorter than the labellum. There is some dispute that specimens from the Aleutians identified as Platanthera convallariifolia may actually be a form of P. huronensis.
Pollination
Pollinator information for this orchid has not been reported.
Ecosystem Type
Fens, marshes, meadows, stream bank, tundra
Characteristics
- Habitat:
- terrestrial
- Leaf arrangement:
- stem
- Number of leaves on stem:
-
- 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:
- present
- Inflorescence type:
- the inflorescence is a raceme
- Labellum characteristics:
- the labellum is simple
- Labellum length:
- 4–9 mm
- Plant height:
- 15–100 cm
Native to North America
Yes
North American Conservation Status & Distribution
Conservation Status
| Conservation and Wetland Status | |
|---|---|
| Global Rank | N/A |
| US Status | N/A |
| Canadian Status | N/A |