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  1. By: Pellant, Michael L. - Shaver, Patrick L. - Pyke, David A. - Herrick, Jeffrey E., - Lepak, Nika. - Riegel, Gregg M - Kachergis, Emily. - Newingham, Beth A. - Toledo, David. - Busby, Frank E. - National Operations Center (U.S.) - National Operations Center (U.S.). Information and Publishing Services Section.
    Publication info: Denver, Colo, U.S. Department of the Interior, Bureau of Land Management, National Operations Center, 2020
    Holding Institution: Bureau of Land Management
  1. By: Riegel, Gregg M - Thornburgh, Dale A. - Sawyer, John O. (John Orvel),
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 37
    Date: 1990
    Page Range: 88--112
    Publication Info: Berkeley, California Botanical Society,
  2. By: Weixelman, Dave A - Riegel, Gregg M
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 59
    Date: 2012
    Page Range: 143--149
    Publication Info: Berkeley, California Botanical Society,