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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 ]
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 ...
This is a list of genera in the orchid family (Orchidaceae), originally according to The Families of Flowering Plants - L. Watson and M. J. Dallwitz.This list is adapted regularly with the changes published in the Orchid Research Newsletter which is published twice a year by the Royal Botanic Gardens, Kew.
The orchid’s only known pollinators are hawkmoths, big moths that are just the right fit and size to reach the orchid's nectar, in a long spur, while also pollinating the plant. 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 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 orchid family (Orchidaceae) is subdivided into five subfamilies, and then into tribes and subtribes. Groups of closely related genera are sometimes referred to informally as alliances . An alliance is a group of taxa, at any taxonomic rank , but usually at the rank of genus or species, that are thought to be closely related.
There are over 32 species of ferns and 34 species of orchids that are found in the park, including the eastern prairie fringed orchid, which is one of the rarest species native to North America. [7] The park hosts half of the world's dwarf lake iris, [12] which is considered a vulnerable species. [13]
Platanthera leucophaea — eastern prairie white-fringed orchid; Platanthera leucostachys — Bog rein orchid, scentbottle; Platanthera obtusata — small northern bog orchid; Platanthera orbiculata — large roundleaf orchid; Platanthera praeclara — western prairie white-fringed orchid; Platanthera psycodes — small purple-fringe orchis