Calopogon tuberosus

Tuberous grass pink

Ottawa, Ontario
Conservation status
Secure (NatureServe)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Orchidaceae
Subfamily:	Epidendroideae
Tribe:	Arethuseae
Genus:	Calopogon
Species:	C. tuberosus
Binomial name
*Calopogon tuberosus* L., Britton, Sterns & Poggenb.^[1]
Synonyms^[2]
List Bletia tuberosa (L.) Ames Calopogon pulchellus Fernald Calopogon pulchellus (Salisb.) R.Br. Calopogon pulchellus f. albiflorus (Britton) Fernald Calopogon pulchellus f. latifolius H.St.John Calopogon pulchellus var. latifolius (H.St.John) Fernald Calopogon pulchellus var. simpsonii (Small) Ames ex Correll Calopogon tuberosus f. albiflorus Britton Calopogon tuberosus var. latifolius (H.St.John) B.Boivin Calopogon tuberosus f. niveus P.M.Br. Cathea pulchella (Salisb.) Salisb. Cathea pulchella f. albiflora (Britton) House Cathea pulchella f. latifolia (Britton) House Cathea pulchella f. linearifolia House Cathea tuberosa (L.) Morong Cymbidium pulchellum (Salisb.) Sw. Helleborine tuberosa (L.) Kuntze Limodorum pulchellum Salisb. Limodorum simpsonii Small Limodorum tuberosum L. Limodorum tuberosum f. albiflorum House Limodorum tuberosum f. latifolium (H.St.John) House Limodorum tuberosum f. linariifolium House Limodorum tuberosum var. nanum Nieuwl.

Calopogon tuberosus, the tuberous grass pink, is an orchid native to eastern North America.^[1]

Distribution

In the United States, it occurs from as far southwest as Texas and Oklahoma and southeast to the Florida Everglades to as far northeast as Maine and as far northwest as Minnesota. In Canada, it is found in all provinces from Newfoundland to Manitoba. It also is found in St. Pierre & Miquelon, Cuba and the Bahamas.^[3]^[4]^[5]

Calopogon tuberosus var. simpsonii (Small) Magrath – southern Florida
Calopogon tuberosus var. tuberosus – from Texas to Florida, north to Manitoba and Nova Scotia, also Cuba and Bahamas

It is listed as "G5 - Secure" under the NatureServe conservation status system. However it is listed as an endangered species by the states of Illinois, Kentucky, and Maryland, and as exploitably vulnerable by New York.

^ ^a ^b Justice, William S.; Bell, C. Ritchie; Lindsey, Anne H. (2005). Wild Flowers of North Carolina (2. printing. ed.). Chapel Hill, NC: Univ. of North Carolina Press. p. 53. ISBN 0807855979.
^ "Calopogon tuberosus (L.) Britton, Sterns & Poggenb". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 8 April 2021.
^ "Calopogon tuberosus". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
^ Kew World Checklist of Selected Plant Families
^ USDA, NRCS (n.d.). "Calopogon tuberosus". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team.