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Catalogue of the flora of Oregon, Washington, and Idaho / [by Thomas Howell]
By: Howell, Thomas,
Publication info: Arthur, Or.? :T. Howell,1881?
Contributed by: Mertz Library, The New York Botanical Garden
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A catalogue of the known plants, (Phænogamia and Pteridophyta) of Oregon, Washington, and Idaho; by Thomas Howell.
By: Howell, Thomas,
Publication info: [Arthur, Ore.],1887.
Contributed by: University of California Libraries (archive.org)
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A flora of northwest America : containing brief descriptions of all the known indigenous and naturalized plants growing without cultivation north of California, west of Utah, and south of British Columbia / by Thomas Howell. Vol. 1, Phanerogamae.
By: Howell, Thomas,
Publication info: Portland, Or. :[s.n.],1903.
Contributed by: Gerstein - University of Toronto (archive.org)
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A flora of northwest America containing brief descriptions of all the known indigenous and naturalized plants growing without cultivation north of California, west of Utah, and south of British Columbia /
By: Howell, Thomas,
Publication info: Portland, Or. :[s.n.],1901.
Contributed by: Canadiana.org (archive.org)
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A flora of northwest America containing brief descriptions of all the known indigenous and naturalized plants growing without cultivation north of California, west of Utah, and south of British Columbia /
By: Howell, Thomas,
Publication info: Portland, Or. :[s.n.],1900.
Contributed by: Canadiana.org (archive.org)
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A flora of northwest America containing brief descriptions of all the known indigenous and naturalized plants growing without cultivation north of California, west of Utah, and south of British Columbia /
By: Howell, Thomas,
Publication info: Portland, Or. :[s.n.],1903.
Contributed by: Canadiana.org (archive.org)
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A flora of northwest America containing brief descriptions of all the known indigenous and naturalized plants growing without cultivation north of California, west of Utah, and south of British Columbia /
By: Howell, Thomas,
Publication info: Portland, Or. :[s.n.],1897.
Contributed by: Canadiana.org (archive.org)
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A flora of northwest America, containing brief descriptions of all the known indigenous and naturalized plants growing without cultivation north of California, west of Utah, and south of British Columbia.
By: Howell, Thomas,
Publication info: Portland, Or.,1903.
Contributed by: Cornell University Library
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