Fruit characteristics : Leaf characteristics : Lower leaves lanceolate to oval, to 15 cm long and 4 cm wide, acute or blunt; upper leaves much reduced, long, narrow and sharp-pointed. Phenology Blooming phenology : early July through early August Fruiting phenology : throughout August Optimum time to identify : The optimal identification period for this species is early July through late July Other Growth form : Forb-erect Vegetative reproduction : Life cycle : Perennial Comments : Associated Species: Silphium spp.
Habitats and landscapes The Natural Heritage Inventory has developed scores indicating the degree to which each of Wisconsin's rare plant species is associated with a particular natural community or ecological landscape. Soils : Moist to wet, sometimes calcareous soils.
Natural communities This table lists the natural communities that are associated with Eastern Prairie White Fringed Orchid. Natural communities score Wet-mesic Prairie 3 Bog Relict 1. Species guidance The Endangered Resources Program has developed avoidance measures and management guidelines for plants on the Natural Heritage Working List. Avoidance measures These are specific actions designed to avoid "take" mortality of this species. Avoid known individual plant locations and conduct operations elsewhere when they are least likely to cause damage.
Ideally, this would involve frozen, snow-covered ground. However, in areas of the state where frozen conditions are unreliable, very dry soils late in the growing season might be the best available alternative. Consult with a biologist, if needed. Avoid broadcast spraying of herbicides; use care with spot spraying.
Management guidance Management guidelines are additional considerations that may help maintain or enhance habitat for this species Minimize disturbance to hydrology, including soil disturbance from rutting.
Maintain and restore open habitat through selective clearing and brushing. Case, F. Orchids of the Western Great Lakes Region. Revised ed. Cranbrook Institute of Science, Bull. Flora of North America Editorial Committee. Flora of North America, North of Mexico. Volume Magnoliaphyta: Liliidae: Liliales and Orchidales.
Oxford University Press, New York. Gleason, H. Second edition. Gray, A. Gray's Manual of Botany; eighth ed. Van Nostrand Reinghold, New York. Holmgren, N. Illustrated Companion to Gleason and Cronquist's Manual. Illustrations of the vascular plants of Northeastern United States and adjacent Canada. New York Botanical Garden, Bronx. Homoya, M. Orchids of Indiana. Indiana University Press, Bloomington.
Luer, C. Native Orchids U. Barrons Educational Series, Hauppauge. Mohlenbrock, R. Guide to the Vascular Flora of Illinois. Southern Illinois University Press, Carbondale. Swink, F. Plants of the Chicago Region, 4th ed. Indiana Academy of Science, Indianapolis. Voss, E. Facts About Accepted Synonym: Blephariglottis leucophaea Platanthera leucophaea, commonly called Eastern Prairie Fringed Orchid, is primarily distributed in the mid-western United States and Canada, from Oklahoma to Ontario, with a limited distribution in the northern mid-Atlantic and New England regions.
Ecosystem Type Bogs, fens, marshes, meadows Characteristics Habitat: terrestrial Leaf arrangement: alternate Number of leaves on stem: one two three four five Form of the labellum: the labellum is not pouch-like Labellum outline: the labellum is fringed Main color of labellum: white Nectar spur: present Inflorescence type: the inflorescence is a raceme Labellum characteristics: the labellum has a spur the labellum is fringed the labellum is lobed Labellum length: 14—22 mm Sepal length: 7—13 mm Plant height: 30— cm.
Fruits or seeds Seed capsule orientation: the capsule points upwards or outwards. Growth form Plant height: 30— cm Roots: the rhizomes are non-coralloid Underground organs: slender roots the plant has one or more swollen storage organs underground, such as bulbs, tubers or corms myco-heterotrophic or not: the plant is chlorophyllous.
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