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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.
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 ]
The Tall Grass Prairie Preserve consists primarily of big bluestem (or turkey foot, resembles the bird's foot), little bluestem, porcupine needlegrass (Stipa spartea), and prairie dropseed grasses. The last known Canadian remnant population of the endangered western prairie fringed orchid (Platanthera praeclara) is within the preserve.
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]
The Wisconsin Rare Plant Monitoring Program relies on volunteers like the one who found Maryland senna here for the first time in more than 100 years.
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.
Hooker's orchid (Platanthera hookeri) Intermediate bog orchid (Platanthera × media) Large round-leaved orchid (Platanthera orbiculata) Long-bracted orchid (Ceologlossum viride var. varescens) Ragged fringed orchid (Platanthera lacera) Ram's head orchid (Cypripedium arietinum; threatened) Small green wood orchid (Platanthera clavellata; special ...