Platanthera leucophaea, commonly known as the prairie white fringed orchid or eastern prairie fringed orchid, is a rare species of orchid native to North America. It is a federally threatened species, protected since October 30, 1989 under the Endangered Species Act of 1973. In Canada, it has been listed endangered under Schedule 1 of the Species at Risk Act since 2005. In 2014, the International Union for Conservation of Nature assessed it as "least concern."
Platanthera bifolia, commonly known as the lesser butterfly-orchid, is a species of orchid in the genus Platanthera, having certain relations with the genus Orchis, where it was previously included and also with the genus Habenaria. It is a Palaearctic species occurring from Ireland in the west, across Europe and Asia to Korea and Japan. It is also found in North Africa. The name Platanthera is derived from Greek, meaning 'broad anthers', while the species name, bifolia, means 'two leaves'.
Joseph Whipple Congdon was a lawyer by trade who contributed significantly to early botanical exploration in California, particularly in the Yosemite region, where he resided in Mariposa from 1882 until 1905. Congdon was born in Pomfret, Connecticut and graduated Brown University with the class of 1855. He was admitted to the bar in Providence, Rhode Island in 1860. He served a term in the Rhode Island legislature for 1878–79. The "Analytical Class-Book of Botany", coauthored with his aunt, [carrying the epigram "Science is the only interpreter of Nature"] antedated by two years the first edition of Class Book of Botany, by Asa Gray. Congdon was the botanist whom correctly diagnosed the rediscovery of the long-lost Shortia galacifolia, a relict herb that had been long sought by Gray.
Platanthera ciliaris, commonly known as the yellow fringed orchid, yellow-fringed orchid, or orange-fringed orchid, is a large and showy species of orchid. It grows in "acid soil of hillside seepage bogs" in the longleaf pine landscapes of the Gulf Coast of the United States. Like many species in these habitats, including flatwoods, it is dependent upon recurring fire to create open conditions. Further north it is found in bogs, but even here it may be dependent upon fire to create open conditions.
The genus Platanthera belongs to the subfamily Orchidoideae of the family Orchidaceae, and comprises about 150 species of orchids. The members of this genus, known as the butterfly orchids or fringed orchids, were previously included in the genus Orchis, which is a close relative. They are distributed throughout the temperate regions of the Northern Hemisphere. They are terrestrial and have tubercules.
Platanthera blephariglottis, commonly known as the white fringed orchid or white-fringed orchis, is a species of orchid of the genus Platanthera. It is considered to be an endangered species in Connecticut and Ohio, a threatened species in Florida, Maryland and Rhode Island, exploitably vulnerable in New York, and susceptible to be threatened in Québec.
Platanthera psycodes, commonly called lesser purple fringed orchid or small purple-fringed orchid, is a species of orchid, genus Platanthera, occurring from eastern Canada to the east-central and northeastern United States. It is imperiled in Illinois, Tennessee, North Carolina, and Kentucky.
Platanthera colemanii is a rare species of orchid known by the common names Coleman's piperia and Coleman's rein orchid. It is endemic to California, where it is known from scattered occurrences along the Sierra Nevada and one disjunct location in Colusa County, California. It grows in coniferous forests and chaparral in deep sandy substrates. It was differentiated from the very similar Platanthera unalascensis in 1993.
Platanthera transversa is a species of orchid known by the common names royal rein orchid and flat spurred piperia.
Platanthera tescamnis, the intermountain bog orchid or yellow rein orchid, is a species of orchid described in 2006. The plant is well-known but had been misidentified. It is native to the Great Basin and Colorado Plateau of the western United States, where it grows in warmer, drier habitat than most related orchids.
Platanthera hyperborea, the northern green orchid, is small orchid found only in Greenland, Iceland, and Akimiski Island in Canada. Numerous authors cite the species as widespread in other parts of Canada and also in the United States; such populations are more correctly referred to as Platanthera aquilonis.
Platanthera obtusata, common name blunt-leaved orchid or small northern bog orchid, is a small species of orchid in the genus Platanthera. It widespread across much of the colder regions of the Northern Hemisphere, though rare in some parts of its range. Two subspecies are recognized:
Platanthera flava, the palegreen orchid, is a species of pale-flowered orchid. It is native to eastern North America, from Texas east to Florida, north to Ontario, Quebec and Nova Scotia.
Platanthera peramoena, the purple fringeless orchid, is a species of flowering plant in the orchid family. It is native to the Eastern United States, where it is found from the Mid-Atlantic states, the Ohio Valley and the Ozark Mountains. Its natural habitat is moist forests, marshes, and on streambanks.
Platanthera nivea, commonly called the snowy orchid, is an orchid species of native to the Southeastern United States. Its range is almost entirely restricted to the southeastern Coastal Plain, with a few notable inland populations such as in Coffee County, Tennessee. Within this range, it is found in wet savannas and bogs.
Platanthera hookeri, otherwise known as Hooker's orchid or Hooker's bog orchid, is a perennial wildflower in the genus Platanthera that can be found in temperate regions of North America ranging from Iowa to Newfoundland.
Platanthera cristata, commonly known as the crested yellow orchid or the crested orange bog orchid, is a species of orchid, a flowering plant in the family Orchidaceae, native to North America. It was first formally described in 1835 by English botanist, John Lindley.
Platanthera dilatata, known as tall white bog orchid, bog candle, or boreal bog orchid is a species of orchid, a flowering plant in the family Orchidaceae, native to North America. It was first formally described in 1813 by Frederick Traugott Pursh as Orchis dilatata.
Platanthera clavellata, commonly known as the club-spur orchid or small green wood orchid, is a terrestrial orchid of North America.
Platanthera aquilonis, the northern green orchid or north wind bog orchid, is a species of self-fertilizing orchid native to the United States and Canada with a widespread distribution across the two countries.
