Neottia borealis

Northern twayblade
Conservation status
Secure  (NatureServe) [1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Orchidaceae
Subfamily:	Epidendroideae
Tribe:	Neottieae
Genus:	Neottia
Species:	N. borealis
Binomial name
Neottia borealis (Morong) Szlach.
Synonyms [2]
Listera borealis Morong Ophrys borealis (Morong) Rydb.

Neottia borealis (syn. Listera borealis), the northern twayblade, ^[3] is a species of terrestrial orchid found in North America. It is widespread across much of Canada, including the three Arctic territories, and also occurs in the mountains of the western United States from Alaska to northern New Mexico. ^{[2] [4] [5]}

Taxonomy

Neottia borealis was scientifically described in 1893 by Thomas Morong who named it Listera borealis. It was moved to the genus Ophrys in 1905 by Per Axel Rydberg and finally to Neottia in 1995 by Dariusz Szlachetko. It has no accepted subspecies. ^[2]

References

1. NatureServe (3 October 2025). "Listera borealis". NatureServe Explorer. Arlington, Virginia. Retrieved 25 October 2025.
2. "Neottia borealis (Morong) Szlach". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 25 October 2025.
3. "Plants Profile for Listera borealis (northern twayblade)", USDA Plants, USDA Natural Resources Conservation Service, retrieved 2012-04-05 (as Listera borealis)
4. Flora of North America, v 26 p 590, Northern twayblade, Listera borealis Morong, Bull. Torrey Bot. Club. 20: 31. 1893.
5. Biota of North America Program, 2013 country distribution map, Neottia borealis