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The inflorescence is large and showy and may have up to 40 white flowers. It is distinguished from Platanthera praeclara, the western prairie fringed orchid, by its smaller flowers (less than one inch (2.5 cm) long), more oval petals, and a shorter nectar spur. [10] The eastern prairie fringed orchid is a long-lived perennial.
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).
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.” [1] Common names include ragged fringed orchid and green fringed orchid.
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