Nodding ladies'-tresses orchid
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Asparagales
- family: Orchidaceae
- genus: Spiranthes
- species: Spiranthes cernua
Greenwood
Nova Scotia
Canada
Auburn- Bay Minette
- Northport
- Tuscaloosa
Alabama- Baltic
- Bethlehem Village
- Bristol
- Central Waterford
- Cheshire
- Cheshire Village
- Colchester
- Danbury
- East Hampton
- East Haven
- Ellington
- Farmington
- Hartford
- Heritage Village
- Killingly Center
- Lisbon
- Litchfield
- Manchester
- Mansfield City
- Middletown
- Montville Center
- Moosup
- New Haven
- New London
- Newtown
- North Grosvenor Dale
- Northwest Harwinton
- Old Saybrook
- Old Saybrook Center
- Orange
- Oxford
- Plainfield
- Plainville
- Seymour
- Southbury
- Storrs
- Terramuggus
- Terryville
- Thompson
- Tolland
- Waterbury
- Watertown
- West Haven
- West Torrington
- Wilton
- Windham
- Wolcott
Connecticut- Brookfield
- La Grange Park
- North Riverside
- Riverside
Illinois- Minden
Nebraska- East Brunswick
- South River
New Jersey- Borough of Bronx
- Sleepy Hollow
- Tarrytown
New York- Boiling Spring Lakes
North Carolina- Colchester
Vermont
United States