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By: Lei, Simon A - Walker, Lawrence RType: ArticleIn: The Great Basin naturalistVolume: 57Series:Issue: 2Date: 1997Page Range: 155--162Publication Info: Provo, Utah, M.L. Bean Life Science Museum, Brigham Young University,Subjects:
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By: Vanier, Cheryl H - Walker, Lawrence RType: ArticleIn: Madroño; a West American journal of botanyVolume: 46Series:Issue:Date: 1999Page Range: 46--48Publication Info: Berkeley California Botanical SocietySubjects: