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Platanthera leucophaea, commonly known as the prairie white fringed orchid [6] or eastern prairie fringed orchid, is a rare species of orchid native to North America. It is a federally threatened species, [ 7 ] protected since October 30, 1989 under the Endangered Species Act of 1973 . [ 8 ]
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, [6] and susceptible to be threatened in Québec.
P. praeclara is distinguished from Platanthera leucophaea, the eastern prairie fringed orchid, by its slightly larger flowers, petal shape, and longer nectar spur. Platanthera praeclara is a long-lived perennial. It emerges in May and blooms in June or in July further north. The flowers are fragrant at night and are pollinated by large sphinx ...
The western prairie fringed orchid is mostly found in reserves, such as the Sheyenne National Grassland in North Dakota and the Manitoba Tall Grass Prairie Preserve. The peak of the orchid's bloom was roughly mid-July. Populations can be as small as one plant or as large as 500 to 1,000, Travers said.
Ontario has 61 varieties of orchids, and of these, 44 can be found in the Bruce Peninsula. A selection of interesting orchids on the Bruce Peninsula: yellow lady's slipper — Cypripedium parviflorum; pink lady's slipper — Cypripedium acaule; nodding ladies' tresses — Spiranthes cernua; eastern prairie fringed orchid — Platanthera leucophaea
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 [2] [3] or fringed orchids, [4] were previously included in the genus Orchis, which is a close relative (along with the genus Habenaria).
The list of genera alone currently stands just short of 1000 entries. From a cladistic point of view, the orchid family is considered to be monophyletic, i.e. the group incorporates all the taxa derived from an ancestral group. The taxonomy of the orchids is explained on the page Taxonomy of the orchid family.
It is the only National Grassland in the tallgrass prairie region of the U.S. [3] The grassland provides habitat for the largest population of greater prairie chickens in North Dakota, as well as the Dakota skipper butterfly, the western prairie fringed orchid, and numerous ferns, as well as grazing land for approximately 83 cattle ranchers. [4]