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Plants -- United States -- Identification

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• Plants -- United States
• Plants -- North America -- Identification
• Plants -- Identification

• Flowers -- United States -- Identification
• Rare plants -- United States -- Identification
• Weeds -- United States -- Identification
• Woody plants -- United States -- Identification
• Plants -- California -- Identification
• Plants -- Indiana -- Identification
• Plants -- Massachusetts -- Identification
• Plants -- Minnesota -- Identification
• Plants -- Oregon -- Identification

• An illustrated flora of the northern United States, Canada and the British possessions from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridian (Charles Scribner's Sons, 1898), by N. L. Britton and Addison Brown (page images at HathiTrust)
• An illustrated flora of the northern United States, Canada and the British possesions from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridian. Vol. 3, Apocynaceae to Compositae, dogbane to thistle (C. Scribner's Sons, 1898), by N. L. Britton and Addison Brown (page images at HathiTrust)

• Flower finder, a guide to identification of spring wild flowers and flower families. (Nature Study Guild], 1955), by May Theilgaard Watts (page images at HathiTrust; US access only)

• How to know wildflowers near your camp. (U.S. Dept. of Agriculture, Forest Service, 1981), by Ivan Christensen and United States Forest Service (page images at HathiTrust)
• How to know wildflowers near your camp. (U.S. Dept. of Agriculture, Forest Service, Intermountain Region, 1999), by United States. Forest Service. Intermountain Region (page images at HathiTrust)
• How to know the wild flowers : a guide to the names, haunts, and habits of our common wild flowers (C. Scribner's Sons, 1893), by Frances Theodora Parsons and Marion Satterlee (page images at HathiTrust)
• The flower-finder (J.B. Lippincott, 1914), by George Lincoln Walton (page images at HathiTrust)
• Wayside flowers (Taber-Prang Art Co., 1898), by F. Schuyler Mathews (page images at HathiTrust)
• Flower guide : revised and with new illustrations : wild flowers east of the Rockies (C.K. Reed, 1913), by Chester A. Reed (page images at HathiTrust)
• Flower finder, a guide to identification of spring wild flowers and flower families. (Nature Study Guild], 1955), by May Theilgaard Watts (page images at HathiTrust; US access only)
• How to know the wild flowers : a guide to the names, haunts, and habits of our common wild flowers (Charles Scribner's Sons, 1897), by Frances Theodora Parsons and Marion Satterlee (page images at HathiTrust)

• The wild flowers of California : their names, haunts, and habits (California School Book Depository, 1921), by Mary Elizabeth Parsons and Margaret Warriner Buck (page images at HathiTrust)

• Flowers and ferns of Muir Woods (Muir Woods Natural History Association, 1963), by Gladys Lucile Harvey Smith, Jeanne R. Janish, California Academy of Sciences, United States National Park Service, and Muir Woods Natural History Association (page images at HathiTrust; US access only)

• Colorado Wild Flowers, by Harold DeWitt Roberts and Rhoda N. Roberts, contrib. by Alfred M. Bailey (Gutenberg ebook)

• Fieldbook of Illinois wild flowers; six hundred fifty of the more common flowering plants in the state. (Urbana, 1936), by Illinois. Natural History Survey Division (page images at HathiTrust)
• A hunter's guide to Illinois flowering plants (Division of Forestry, Illinois Dept. of Conservation, 1979), by Robert H. Mohlenbrock, Illinois. Dept. of Conservation, and Illinois. Division of Forestry (page images at HathiTrust)
• Spring woodland wildflowers of Illinois (Illinois Dept. of Conservation, Division of Forestry, 1980), by Robert H. Mohlenbrock and Illinois. Division of Forestry (page images at HathiTrust)

• Chincoteague National Wildlife Refuge : wildflowers. (U.S. Fish and Wildlife Service, 2004), by U.S. Fish and Wildlife Service (page images at HathiTrust)

• Nebraska Wild Flowers (c1973), by Robert C. Lommasson (PDF at unl.edu)

• Wild flowers of North Dakota (Agricultural Experiment Station, North Dakota Agricultural College, 1933), by Orin Alva Stevens (page images at HathiTrust; US access only)

• Chincoteague National Wildlife Refuge : wildflowers. (U.S. Fish and Wildlife Service, 2004), by U.S. Fish and Wildlife Service (page images at HathiTrust)

• Commonly found wildflowers in Garfield County, Washington : a brief photographic and descriptive overview (U.S. Dept. of Agriculture, Forest Service - Pacific Northwest Region, 2008), by G. Paul Miller, Umatilla National Forest (Agency : U.S.). Southeast Washington Resource Advisory Committee, United States. Forest Service. Pacific Northwest Region, and Pomeroy Ranger District (Wash. and Or.) (page images at HathiTrust)

• Wild flowers of Wyoming (Agriculture Extension Service, University of Wyoming, 1968), by Ruth Ashton Nelson and University of Wyoming. Agricultural Extension Service (page images at HathiTrust; US access only)

• Nature guide. (U.S. Dept. of Defense, Dept. of the Army, Corps of Engineers, Huntington District, 1975), by United States Army Corps of Engineers (page images at HathiTrust)

• Field identification cards (Dept. of Agriculture, Forest Service, Southeastern Area, State and Private Forestry, 1979), by Andrew F. Robinson and United States. State and Private Forestry. Southeastern Area (page images at HathiTrust)

• Colorado rare plant field guide (U.S. Dept. of Agriculture, Forest Service?, 1997), by United States Forest Service and Colorado Rare Plant Technical Committee (page images at HathiTrust)

• Idaho and Wyoming : endangered and sensitive plant field guide. (USDA, Forest Service, Intermountain Region, 1990), by United States. Forest Service. Intermountain Region (page images at HathiTrust)

• Rare plants of the Ozark Plateau : a field identification guide (Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1978), by Beverly J. Roedner, Keith E. Evans, David A. Hamilton, United States Forest Service, and Minn.) North Central Forest Experiment Station (Saint Paul (page images at HathiTrust)

• Utah threatened, endangered, and sensitive plant field guide (Intermountain Region, U.S. Forest Service, 1991), by Duane Atwood and United States. Forest Service. Intermountain Region (page images at HathiTrust)

• Wyoming Rare Plant Field Guide (ca. 1995), by Walter Fertig, illust. by Charmaine Refsdal Delmatier and Jennifer Whipple (page images at HathiTrust)

• Idaho and Wyoming : endangered and sensitive plant field guide. (USDA, Forest Service, Intermountain Region, 1990), by United States. Forest Service. Intermountain Region (page images at HathiTrust)

• A field guide for forest indicator plants, sensitive plants, and noxious weeds of the Shoshone National Forest, Wyoming (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2001), by Kent E. Houston, Carol J. Hartung, Walter J. Hartung, United States Forest Service, and Rocky Mountain Research Station--Ogden (page images at HathiTrust)

• A manual of weeds : with descriptions of all the most pernicious and troublesome plants in the United States and Canada : their habits of growth and distribution, with methods of control (Macmillan Co., 1914), by Ada E. Georgia and F. Schuyler Mathews (page images at HathiTrust)

• Growers weed identification handbook. (Division of Agricultural Sciences, University of California, 1976), by University of California (System). Division of Agricultural Sciences (page images at HathiTrust)

• Colorado weeds (State Agricultural College, Agricultural Experiment Station, 1893), by Charles S. Crandall (page images at HathiTrust)
• The identification and control of Colorado weeds (Agricultural Experiment Station of the Agricultural College of Colorado, 1919), by Wilfred William Robbins and Breeze Boyack (page images at HathiTrust)
• Colorado weeds (Colorado Agricultural College, Colorado Experiment Station, 1933), by Bruce Jay Thornton and L. W. Durrell (page images at HathiTrust; US access only)

• Kansas weeds. IV, Fruits and seeds (Experiment Station, Kansas State Agricultural College, 1897), by A. S. Hitchcok and George L. Clothier (page images at HathiTrust)

• Weeds of Maine : a synopsis of the principal weeds found growing in Maine, arranged according to the natural system adopted by Gray in his manual (Sprague, Owen & Nash, 1869), by F. Lamson-Scribner (page images at HathiTrust)

• Seeds of Michigan Weeds, by W. J. Beal (Gutenberg ebook)

• Nebraska weeds. (State of Nebraska, Dept. of Agriculture, Weed Division, 1975), by Emery W. Nelson and Nebraska. Weed Division (page images at HathiTrust; US access only)

• Weeds of Wyoming (Agricultural Experiment Station, University of Wyoming, 1969), by Harold Pugmire Alley and Gary Albert Lee (page images at HathiTrust; US access only)
• Description and distribution of the primary noxious weeds in Wyoming (Agricultural Experiment Station, University of Wyoming, 1962), by Lawrence W. Mitich and Wyoming Agricultural Experiment Station (page images at HathiTrust; US access only)

• Woody plants (W. Trelease, 1940), by William Trelease (page images at HathiTrust; US access only)

• The wild flowers of California : their names, haunts, and habits (California School Book Depository, 1921), by Mary Elizabeth Parsons and Margaret Warriner Buck (page images at HathiTrust)
• Studies in the botany of California and parts adjacent. i-vi. (The Academy, 1885), by Edward Lee Greene (page images at HathiTrust)

• Plants of Indiana (Review Steam Book and Job Printers, 1881), by John Merle Coulter (page images at HathiTrust)

• Reports on the herbaceous plants and on the quadrupeds of Massachusetts (The Survey, 1840), by Ebenezer Emmons, Chester Dewey, and Massachusetts. Zoological and Botanical Survey (page images at HathiTrust)

• Flora of Minnesota (Johnson, Smith and Harrison, 1884), by Warren Upham and Geological and Natural History Survey of Minnesota (page images at HathiTrust)

• Key and flora : some of the common flowers of Oregon (Ginn, 1908), by Albert R. Sweetser and Mary E. Kent (page images at HathiTrust)

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