Platanthera praeclara, known as the western prairie fringed orchid and the Great Plains white fringed orchid, is a rare and threatened species of orchid native to North America.
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 listed as a threatened species in the United States on September 28, 1989. The IUCN does not currently recognize it as being at risk.
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".
Eumorpha achemon, the Achemon sphinx, is a moth of the family Sphingidae. The species was first described by Dru Drury in 1773.
The genus Platanthera belongs to the subfamily Orchidoideae of the family Orchidaceae, and comprises about 100 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.
Cypripedium candidum, known as the small white lady's slipper or white lady's slipper, is a rare orchid of the genus Cypripedium. It is native to eastern North America across the northern United States and southern Canada.
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 unalascensis is a species of orchid known by the common names slender-spire orchid, Alaska piperia and Alaska rein orchid. It is native to much of western North America from Alaska to the southwestern United States, as well as eastern sections of Canada and the Great Lakes. It can be found in forest, woodland, and scrub habitat, often in dry areas. This orchid grows erect to about 70 centimeters in maximum height. The basal leaves are up to 15 centimeters long by 4 wide. Leaves higher on the stem are much reduced. The upper part of the stem is a slender, spikelike inflorescence of widely spaced translucent green flowers. The flowers are fragrant in the evenings, with a musky, soapy, or honeylike scent. The plant is variable in size, stem thickness, density of inflorescence, petal shape, and scent. Plants of the coast ranges and the Pacific Northwest are stouter and have broader sepals and petals than do interior and montane forms.
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 integra, the yellow fringeless orchid, is a member of the orchid family with yellow flowers. It is native to the Southeastern United States from eastern Texas to North Carolina plus a few isolated populations in Delaware and New Jersey.
Platanthera orbiculata, the lesser roundleaved orchid, is a species of orchid native to forested areas of North America. It is widespread across most of Canada and parts of the United States.
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.
Liparis liliifolia, known as the brown widelip orchid, lily-leaved twayblade, large twayblade, and mauve sleekwort, is a species of orchid native to eastern Canada and the eastern United States. It can be found in a variety of habitats, such as forests, shrublands, thickets, woodlands, and mountains. The orchid is considered globally secure, but it is considered rare or endangered in many northeastern states.
Platanthera lacera is an orchid in the genus Platanthera, native throughout Eastern United States and Canada. It occurs in a variety of habitats ranging from “mesic and dry-mesic sand prairie, wet sedge meadow, calcareous fen, sphagnum bog, acid seep spring, dry field, mesic flatwoods, and mesic upland forests.” Common names include ragged fringed orchid and green fringed orchid.
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 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.
