''Isotria'' (fiveleaf orchid) is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. They include all forbs (flowering plants without a woody stem), grasses and grass-like plants, a vast majority of ...

s from the orchid family,

Orchidaceae Orchids are plants that belong to the family Orchidaceae (), a diverse and widespread group of flowering plants with blooms that are often colourful and fragrant. Along with the Asteraceae, they are one of the two largest families of flowering ...

Species

The

has two known species, both native to eastern North America.Kew World Checklist of Selected Plant Families
/ref> * ''

Isotria medeoloides ''Isotria medeoloides'', commonly known as small whorled pogonia or little five leaves, is a terrestrial orchid found in temperate Eastern North America. Distribution The orchid's range is from southern Maine south to Georgia and west to southe ...

'' — eastern North America from

New England New England is a region comprising six states in the Northeastern United States: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. It is bordered by the state of New York to the west and by the Canadian province ...

south along the

Appalachian Mountains The Appalachian Mountains, often called the Appalachians, (french: Appalaches), are a system of mountains in eastern to northeastern North America. The Appalachians first formed roughly 480 million years ago during the Ordovician Period. The ...

to Georgia and Tennessee. Isolated populations in Missouri, Illinois,

Michigan Michigan () is a U.S. state, state in the Great Lakes region, Great Lakes region of the Upper Midwest, upper Midwestern United States. With a population of nearly 10.12 million and an area of nearly , Michigan is the List of U.S. states and ...

, Ohio, and

Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central C ...

. * ''

Isotria verticillata ''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 ...

'' — eastern and central North America from Maine to eastern Texas, north into the

Ohio Valley The Ohio River is a long river in the United States. It is located at the boundary of the Midwestern and Southern United States, flowing southwesterly from western Pennsylvania to its mouth on the Mississippi River at the southern tip of Illino ...

and

Great Lakes region The Great Lakes region of North America is a binational Canada, Canadian–United States, American region that includes portions of the eight U.S. states of Illinois, Indiana, Michigan, Minnesota, New York (state), New York, Ohio, Pennsylvania ...

.Biota of North America Program, county distribution maps, ''Isotria verticillata''
/ref>

References

External links

Vanilloideae genera Pogonieae Orchids of North America Orchids of Canada Orchids of the United States {{Vanilloideae-stub