Great Basin Naturalist Volume 49 Number 1 Article 1 1-31-1989 On the distribution of Utah's hanging gardens Stanley L. Welsh Brigham Young University Follow this and additional works at: https://scholarsarchive.byu.edu/gbn Recommended Citation Welsh, Stanley L. (1989) "On the distribution of Utah's hanging gardens," Great Basin Naturalist: Vol. 49 : No. 1 , Article 1. Available at: https://scholarsarchive.byu.edu/gbn/vol49/iss1/1 This Article is brought to you for free and open access by the Western North American Naturalist Publications at BYU ScholarsArchive. It has been accepted for inclusion in Great Basin Naturalist by an authorized editor of BYU ScholarsArchive. For more information, please contact
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[email protected]. The Great Basin Naturalist Published at Provo, Utah, by Brigham Young University ISSN 0017-3614 Volume 49 31 January 1989 No. 1 ON THE DISTRIBUTION OF UTAH'S HANGING GARDENS Stanley L. Welsh 1 Abstract. —This is a summary monograph of the hanging gardens as they occur in the Colorado River and Virgin River portions of the Colorado Plateau in Utah. Discussed in this paper are the hanging gardens, their geography, geomorphology, aspects of distribution and diversity, and principal vascular and algal plant species. Animal trapping studies and plant productivity aspects are reviewed. The sea of aridity that overlies southern tively recent origin, geologically speaking Utah and vicinity is broken by seasonal influ- (Hintze 1972). ences and by the dendritic trenches of the The geological strata are remarkably evi- Colorado River and its tributaries. The effects dent in this arid setting, where vegetative of the river are restricted to its banks and cover is thin and where rate of soil develop- adjacent alluvial terraces; the riparian vegeta- ment is exceeded by processes of erosion.