Distribution

Description

Flowering summer.

Height    5-30 cm.

Inflorescence

spike.

Leaves two, rarely one to four; blade orbiculate to lanceolate.

Flowers green-yellow to white, resupinate; sepals and lip margins entire.

Spur    club shaped to terete.

Rostellum lobes oriented downward.

Viscidia circular to quadrangular.

Habitat

Wet meadows, tundra, bogs

Conservation and Wetland Status

Threatened and Endangered Status

Washington Threatened

Synonyms

Habenaria chorisiana Chamisso, Linnaea 3: 31. 1828; Limnorchis chorisiana (Chamisso) J. P. Anderson;
Pseudodiphryllum chorisianum (Chamisso) Nevski

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Chromosome number

2n = 42

Author and publication information for name

Platanthera chorisiana (Cham.) Rchb.f. in H. G. L. Reichenbach et al., Icon. Fl. Germ. Helv. 13–14: 128. 1851.

Vernacular name

Chimisso's Orchid

Link to Interactive Platanthera key

http://utc.usu.edu/keys/Platanthera/Platanthera.html

References

C. J. Sheviak (2003). Flora of North America, Magnoliophyta: Liliidae: Liliales and Orchidales. Vol. 26:496-571. Oxford University Press.

U.S. Department of Agriculture. PLANTS Database. http://plants.usda.gov/index.html. Accessed primarily in July 2006.

Flowering	summer.
Height	5-30 cm.
Inflorescence	spike.
Leaves	two, rarely one to four; blade orbiculate to lanceolate.
Flowers	green-yellow to white, resupinate; sepals and lip margins entire.
Spur	club shaped to terete.
Rostellum	lobes oriented downward.
Viscidia	circular to quadrangular.