Platanthera dilatata
(Pursh) Lindley ex Beck
[Habenaria dilatata] (Pursch) Hooker
Tall White Bog Orchid
Fragrant White Orchid
Bog Candle
Location Newfoundland, Nova Scotia, Prince Edward Island, New Brunswick, Quebec, Ontario, Manitoba, Saskatchewan, Alberta, British Columbia, Yukon, Northwest Territories.
Specific Habitat

Common in the north west mountains of North America in sunny wet terrain. In the east , mainly a plant of the Boreal and Mixed Forest Regions. Can be found in fens in areas of calcareous bedrock.

Flowering Season

June to July, and as late as September.


Height 15-65 cm.
Leaves linear to lanceolate, dark green, up to 25 X 5 cm, gradually reduced to bracts upwards.
Raceme 12 - 60 flowers.
Flowers white, vanilla or clove scented..


Occurs only in open sedge fens and in a fewc adjacent treed fens. It never grows in the more acidic environments of bogs. Often found with Sedges, Pitcher Plant and Sundews, and with such orchids as Pogonia ophioglossoides, Calopogon tuberosus, and Platanthera hyperborea.


Orchids of Bruce & Grey
Orchids of Ontario
The Canadian Field-Naturalist Vol III - 1

Habitat Plant Flower

© Royal Botanical Gardens, Dr. Donald Gunn Image Collection.