-
by Cooper, J. G. (James Graham), 1830-1902
Published 1994 -
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 -
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 -
by Hitchcock, C. Leo (Charles Leo), 1902-1986
Published 1973 -
by Munger, Susan H.
Published 2003 -
Flora of southern British Columbia and Vancouver islandwith many references to Alaska and northern speciesBookby Henry, Joseph Kaye, 1861-1930
Published 1915 -
by Enari, Leonid
Published 1956