Ecliptinae genusWyethia speciesWyethia arizonica A. Gray Proc. Amer. Acad. Arts 8: 655. 1873. William A. Weber Endemic Treatment appears in FNA Volume 21. Treatment
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genusHelianthella speciesHelianthella quinquenervis (Hooker) A. Gray Proc. Amer. Acad. Arts 19: 10. 1883. William A. Weber Basionym: Helianthus quinquenervis Hooker London
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Ecliptinae genusWyethia speciesWyethia mollis A. Gray Proc. Amer. Acad. Arts 6: 544. 1865. William A. Weber IllustratedEndemic Treatment appears in FNA Volume
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Ecliptinae genusWyethia speciesWyethia longicaulis A. Gray Proc. Amer. Acad. Arts 19: 4. 1883. William A. Weber Endemic Treatment appears in FNA Volume 21. Treatment
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Ecliptinae genusWyethia speciesWyethia glabra A. Gray Proc. Amer. Acad. Arts 6: 543. 1865. William A. Weber Endemic Treatment appears in FNA Volume 21. Treatment
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genusOreas speciesOreas martiana (Hooker) Bridel Bryol. Univ. 1: 383. 1826,. William A. Weber Basionym: Weissia martiana Hooker Musci Exot. 2: plate 104. 1819 Treatment
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genusHelianthella speciesHelianthella castanea Greene Erythea 1: 127. 1893. William A. Weber Endemic Treatment appears in FNA Volume 21. Treatment on page 117.
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helianthoides Nuttall J. Acad. Nat. Sci. Philadelphia 7: 40, plate 5. 1834. William A. Weber Endemic Treatment appears in FNA Volume 21. Treatment on page 103.
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genusHelianthella speciesHelianthella uniflora (Nuttall) Torrey & A. Gray Fl. N. Amer. 2: 334. 1842. William A. Weber Endemic Basionym: Helianthus uniflorus Nuttall J.
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speciesCampylostelium saxicola (F. Weber & D. Mohr) Bruch & Schimper Bryol. Europ. 2: 27. 1846,. William D. Reese† Basionym: Dicranum saxicola F. Weber & D. Mohr Neues Bot
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heliophila (Mackenzie) W. A. Weber Treatment appears in FNA Volume 23. Treatment on page 544. Mentioned on page 541, 543. Illustrator: Susan A. Reznicek Copyright:
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Yucca utahensis Linnaeus Sp. Pl. 1: 319. 1753. , Gen. Pl. ed. 5, 150. 1754. William J. Hess, R. Laurie Robbins Common names: Spanish-bayonet Etymology: Carib
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and L. D. Benson and R. A. Darrow (1981) recognized the variety as well; however, J. L. Reveal (1977c) declined to recognize it, a decision with which we
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var. elata, Yucca elata var. verdiensis Engelmann Bot. Gaz. 7: 17. 1882. William J. Hess, R. Laurie Robbins Common names: Palmella soap-tree yucca soap-weed
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varietyYucca elata var. verdiensis (McKelvey) Reveal in A. Cronquist et al., Intermount. Fl. 6: 533. 1977. William J. Hess, R. Laurie Robbins Endemic Basionym: Yucca
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recognition as a distinct species. J. M. Webber (1953) considered Y. campestris to be a hybrid between Y. constricta and Y. elata, and reported a distribution
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genusYucca speciesYucca glauca Nuttall Cat. Pl. Upper Louisiana, no. 89. 1813. William J. Hess, R. Laurie Robbins Common names: Beargrass Great Plains yucca soapweed
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Trelease Rep. (Annual) Missouri Bot. Gard. 22: 101, plates 104–107. 1911. William J. Hess, R. Laurie Robbins Common names: Thompson yucca bayoneta Treatment
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reverchonii Trelease Rep. (Annual) Missouri Bot. Gard. 22: 102, plate 108. 1911. William J. Hess, R. Laurie Robbins Common names: San Angelo yucca Endemic Treatment
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speciesYucca pallida McKelvey Yuccas Southw. U.S. 2: 57, plates 13, 14. 1947. William J. Hess, R. Laurie Robbins Common names: Pale yucca Endemic Synonyms: Yucca
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