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An illustrated flora of the northern United States Canada and the British possessionsfrom Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridianBookby Britton, Nathaniel Lord, 1859-1934
Published 1913 -
Flora of southern British Columbia and Vancouver islandwith many references to Alaska and northern speciesBookby Henry, Joseph Kaye, 1861-1930
Published 1915 -
Manual of the botany (Phænogamia and Pteridophyta) of the Rocky Mountain regionfrom New Mexico to the British boundaryBookby Coulter, John Merle, 1851-1928
Published 1885 -
The flora of the Palouse regionContaining descriptions of all the spermatophytes and pteridophytes known to grow wild in the area within 35 kilometers of Pullman WashingtonBookby Piper, Charles V. (Charles Vancouver), 1867-1926
Published 1901 -
by Enari, Leonid
Published 1956 -
by Piper, Charles V. (Charles Vancouver), 1867-1926
Published 1906 -
by Frye, Theodore C. (Theodore Christian), 1869-1962
Published 1914 -
by McKelvey, Susan Delano
Published 1956 -
by Hitchcock, C. Leo (Charles Leo), 1902-1986
Published 1955 -
by Cooper, J. G. (James Graham), 1830-1902
Published 1994 -
by Lyons, C. P. (Chester Peter), 1915-
Published 1956 -
by Hitchcock, C. Leo (Charles Leo), 1902-1986
Published 1973 -
The British herbalan history of plants and trees natives of Britain cultivated for use or raised for beautyBookby Hill, John, 1714?-1775
Published 1756 -
by Abrams, Le Roy, 1874-1956
Published 1923