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    Author(s): Ardell J. Bjugstad; William Fortune
    Date: 1989
    Source: In: Bragg, Thomas B.; Stubbendieck, James (eds.) Prairie pioneers: ecology, history and culture : proceedings of the Eleventh North American Prairie Conference held 7-11 August 1988, Lincoln, Nebraska. Lincoln, Neb.: University of Nebraska Printing: 197-199
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (253 KB)

    Description

    Western prairie fringed orchid (Platanthera praeclara Sheviak and Bowles) Populations at one time extended from southwestern Missouri north to northwestern Minnesota, and from eastern Iowa to the Sandhills of north central Nebraska. It is listed as endangered in Iowa and Minnesota and candidate for threatened or endangered status in Kansas, Missouri, Nebraska, North Dakota, Oklahoma, and South Dakota. The questions are, “Why has it declined in numbers?” How have uses such as mowing for hay or grazing by cattle or no use (control) affected the numbers? In 1987, Permanently located individual plants were counted on the Sheyenne National Grasslands of southeastern North Dakota. Population trends of this orchid were compared regarding effects of mowing, grazing, and fire. The evaluation of the Permanently located individual plants, and data on total counts Per area in 1988 showed a difference between years and significant difference among grazed, mowed, or no use treatments. The western prairie fringed orchid appears very resilient, but more data will be needed to test this prognosis.

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    Citation

    Bjugstad, Ardell J.; Fortune, William. 1989. The western prairie fringed orchid (Platanthera praeclara): monitoring and research. In: Bragg, Thomas B.; Stubbendieck, James (eds.) Prairie pioneers: ecology, history and culture : proceedings of the Eleventh North American Prairie Conference held 7-11 August 1988, Lincoln, Nebraska. Lincoln, Neb.: University of Nebraska Printing: 197-199

    Keywords

    western prairie fringed orchid, Platanthera praeclara, orchid, wet meadow, Sheyenne National Grasslands, North Dakota

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