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Isotria verticillata

Isotria verticillata

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Ordo: Asparagales

Familia: Orchidaceae
Subfamilia: Vanilloideae
Tribus: Pogonieae
Genus: Isotria
Species: Isotria verticillata
Name

Isotria verticillata (Muhl. ex Willd.) Raf., Med. Repos., ser. 2, 5: 357 (1808)

Type species:

Synonymy

Basionym
Arethusa verticillata Muhl. ex Willd., Sp. Pl. 4: 81 (1805)
Homotypic
Odonectis verticillata (Muhl. ex Willd.) Raf., Med. Repos., ser. 2, 5: 357 (1808)
Pogonia verticillata (Muhl. ex Willd.) Nutt., Gen. N. Amer. Pl. 2: 192 (1818)
Heterotypic
Pogonia verticillata var. medeoloides Eaton, Man. Bot., ed. 3: 397 (1832)

Distribution
Native distribution areas:

Northern America
Eastern Canada
Ontario.
North-Central U.S.A.
Illinois, Missouri, Oklahoma.
Northeastern U.S.A.
Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Islands, Vermont, West Virginia.
South-Central U.S.A.
Texas.
Southeastern U.S.A.
Alabama, Arkansas, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia.

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References

Pridgeon, A.M., Cribb, P.J., Chase, M.W. & Rasmussen, F.N. (eds.) 2003. Genera Orchidacearum Volume 3: Orchidoideae (Part two); page 291 ff., Oxford: Oxford University Press. ISBN 0-19-850711-9
Rafinesque-Schmaltz, C.S. (1808) Medical Repository, ser. 2 5: 357.

Links

Global Biodiversity Information Facility. 2021. GBIF Backbone Taxonomy. Checklist dataset. Taxon: Isotria verticillata. Accessed: 2021 Sep 30.
Govaerts, R. et al. 2021. Isotria verticillata in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2021 Sep 30. Reference page.
Govaerts, R. et al. 2021. Isotria verticillata in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2021 Sep 30. Reference page.
Hassler, M. 2021. Isotria verticillata. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2021. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2021 Sep 30. Reference page.
International Plant Names Index. 2021. Isotria verticillata. Published online. Accessed: 30 Sep 2021.
Tropicos.org 2021. Isotria verticillata. Missouri Botanical Garden. Published online. Accessed: 30 Sep 2021.

Vernacular names

English: Large whorled pogonia orchid

Isotria verticillata, commonly known as the large whorled pogonia and purple fiveleaf orchid, is an orchid species native to eastern North America.

Distribution

The orchid's native range is across the Eastern United States in the Appalachian Mountains, the central and eastern Great Lakes region, and elsewhere from Maine south to Florida, and westward from Michigan south to Texas. It is also native to Ontario, Canada.

It grows in acidic soils in forests and in peat bogs.[1]
Description

Isotria verticillata is a terrestrial orchid spreading by underground rhizomes.

Its leaves are green above, waxy and a bit whitened below.

The flowers are yellowish-green, up to 110 mm (4.3 inches) across.[1]
References

Flora of North America v 26 p 512.
Tropicos
The Plant List

Plants Images

Biology Encyclopedia

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