American grasses I. (Illustrated) - Lamson-Scribner, F. (Govt. Print. Off, 1900)

American grasses - Lamson-Scribner, F. (Gov. Print. Off, 1897)

American grasses - United States. Division of Agrostology. (U.S. Dept. of Agriculture, Division of Agrontology, 1897)

American grasses - United States. Division of Agrostology. (U.S. Dept. of Agriculture, Division of Agrontology, 1897)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1883)

Aquatic and wetland plants of southwestern United States - Correll, Donovan Stewart, 1908 -1983 (Environmental Protection Agency; [For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1972)

Botanical gazette ([publisher not identified], 1908)

Botanical gazette ([publisher not identified], 1917)

Botanisches Zentralblatt; referierendes Organ für das Gesamtgebiet der Botanik - Association internationale des botanistes. (G. Fischer [etc.], 1887)

Bulletin - Colorado Agricultural Experiment Station (Colorado State University Experiment Station, 1905)

Bulletin - Colorado Agricultural Experiment Station (Colorado State University Experiment Station, 1917)

Bulletin of the Torrey Botanical Club - Torrey Botanical Club. (Torrey Botanical Club, 1915)

Bulletin of the Torrey Botanical Club - Torrey Botanical Club. (Torrey Botanical Club, 1915)

Bulletin of the Torrey Botanical Club - Torrey Botanical Club. (Torrey Botanical Club, 1915)

Bulletin of the Torrey Botanical Club - Torrey Botanical Club. (Torrey Botanical Club, 1915)

Bulletin of the Torrey Botanical Club - Torrey Botanical Club. (Torrey Botanical Club, 1916)

Bulletin of the Torrey Botanical Club - Torrey Botanical Club. (Torrey Botanical Club, 1917)

Bulletin - United States. Division of Agrostology. (The Division, 1895)

Bulletin - United States. Division of Agrostology. (The Division, 1895)

Bulletin - United States. Division of Agrostology. (The Division, 1895)

Bulletin - United States. Division of Agrostology. (The Division, 1897)

Bulletin - United States. Division of Agrostology. (The Division, 1897)

Checklist of vascular plants of the Southern Rocky Mountain Region - Snow, Neil Wilton (2009)

A Classification of forest habitat types of the Lincoln National Forest, New Mexico - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1984)

A Classification of forest habitat types of the Lincoln National Forest, New Mexico - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1984)

A Classification of forest habitat types of the Lincoln National Forest, New Mexico - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1984)

A Classification of forest habitat types of the Lincoln National Forest, New Mexico - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1984)

Contributions from the New York Botanical Garden - New York Botanical Garden (The Garden, 1915)

Contributions from the New York Botanical Garden - New York Botanical Garden (The Garden, 1915)

Contributions from the New York Botanical Garden - New York Botanical Garden (The Garden, 1918)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1915)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1925)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 2003)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 2003)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 2003)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 2003)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 2003)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 2003)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 2003)

The flora of Boulder, Colorado, and vicinity - Daniels, Francis Potter, 1869 -1947 (The University of Missouri, 1911)

The flora of Boulder, Colorado, and vicinity - Daniels, Francis Potter, 1869 -1947 (The University of Missouri, 1911)

Flora of Colorado - Rydberg, Per Axel, 1860 -1931 (Experiment Station, 1906)

Flora of Colorado - Rydberg, Per Axel, 1860 -1931 (Experiment Station, 1906)

Flora of Colorado - Rydberg, Per Axel, 1860 -1931 (Experiment Station, 1906)

Flora of Colorado - Rydberg, Per Axel, 1860 -1931 (Experiment Station, 1906)

Flora of Colorado - Rydberg, Per Axel, 1860 -1931 (Experiment Station, 1906)

Flora of Colorado - Rydberg, Per Axel, 1860 -1931 (Experiment Station, 1906)

Flora of Colorado - Rydberg, Per Axel, 1860 -1931 (Experiment Station, 1906)

Flora of New Mexico - Standley, Paul Carpenter, 1884 -1963 (G.P.O, 1915)

Flora of New Mexico. By E.O. Wooton and Paul C. Standley - Standley, Paul Carpenter, 1884 -1963 (Govt. Print. Off, 1915)

Flora of the four corners region : vascular plants of the San Juan River drainage, Arizona, Colorado, New Mexico, and Utah / Kenneth D. Heil...[et al.] - Heil, Kenneth D. (Missouri Botanical Garden, 2013)

Flora of the four corners region : vascular plants of the San Juan River drainage, Arizona, Colorado, New Mexico, and Utah / Kenneth D. Heil...[et al.] - Heil, Kenneth D. (Missouri Botanical Garden, 2013)

Flora of the Rocky Mountains and adjacent plains : Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, North Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (Rydberg, 1917)

Flora of the Rocky Mountains and adjacent plains, Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (The author, 1917)

Flora of the Rocky Mountains and adjacent plains, Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, North Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (The author, 1922)

Flora of the Rocky Mountains and adjacent plains, Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (The author, 1917)

Flore du département des Deux-Sèvres Première partie Manuel analytique, destiné à faciliter la détermination et à assurer le classement des plantes spontanées du département - Maillard, P.-N. 1813 -1883 (J.-B. Baillière, 1884)

Flowering plants and ferns of Arizona - Kearney, Thomas H. (Thomas Henry), 1874 -1956 (U.S. Dept. of Agriculture, 1942)

Forest and woodland habitat types (plant associations) of Arizona south of the Mogollon Rim and Southwestern New Mexico - United States. Forest Service. Southwestern Region. (USDA Forest Service, Southwestern Region, 1987)

Forest and woodland habitat types (plant associations) of Arizona south of the Mogollon Rim and Southwestern New Mexico - United States. Forest Service. Southwestern Region. (USDA Forest Service, Southwestern Region, 1987)

Forest and woodland habitat types (plant associations) of Arizona south of the Mogollon Rim and Southwestern New Mexico - United States. Forest Service. Southwestern Region. (USDA Forest Service, Southwestern Region, 1987)

Forest and woodland habitat types (plant associations) of Arizona south of the Mogollon Rim and Southwestern New Mexico - United States. Forest Service. Southwestern Region. (USDA Forest Service, Southwestern Region, 1987)

Forest and woodland habitat types (plant associations) of Northern New Mexico and Northern Arizona - United States. Forest Service. Southwestern Region. (USDA Forest Service, Southwestern Region, 1987)

Forest and woodland habitat types (plant associations) of Northern New Mexico and Northern Arizona - United States. Forest Service. Southwestern Region. (USDA Forest Service, Southwestern Region, 1987)

Forest and woodland habitat types (plant associations) of Northern New Mexico and Northern Arizona - United States. Forest Service. Southwestern Region. (USDA Forest Service, Southwestern Region, 1987)

Forest and woodland habitat types (plant associations) of Northern New Mexico and Northern Arizona - United States. Forest Service. Southwestern Region. (USDA Forest Service, Southwestern Region, 1987)

Forest and woodland habitat types (plant associations) of Northern New Mexico and Northern Arizona - United States. Forest Service. Southwestern Region. (USDA Forest Service, Southwestern Region, 1987)

Forest and woodland habitat types (plant associations) of Northern New Mexico and Northern Arizona - United States. Forest Service. Southwestern Region. (USDA Forest Service, Southwestern Region, 1987)

The grasses and grass-like plants of New Mexico - Standley, Paul Carpenter, 1884 -1963 (New Mexico College of Agriculture and Mechanic Arts, Agricultural Experiment Station, 1912)

Grasses of North America - Beal, W. J. (William James), 1833 -1924 (H. Holt and company, 1887)

Grasses of North America the grasses classified, described and each genus illustrated, with chapters on their geographical distribution and a bibliography - Beal, W. J. (William James), 1833 -1924 (H. Holt, 1896)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1981)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1989)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1990)

Great Basin naturalist memoirs - Brigham Young University. (Brigham Young University, 1987)

Great Basin naturalist memoirs - Brigham Young University. (Brigham Young University, 1987)

Index Kewensis. names of seed-bearing plants at the rank of family and below published between January 1976 and the end of 1980 with some omissions from earlier years Supplement seventeen - Royal Botanic Gardens, Kew. (Clarendon Press)

Index to grass species - Smithsonian Institution (G. K. Hall, 1962)

Index to grass species - Smithsonian Institution (G. K. Hall, 1962)

Index to grass species - Smithsonian Institution (G. K. Hall, 1962)

Index to grass species - Smithsonian Institution (G. K. Hall, 1962)

Journal of the Botanical Research Institute of Texas - Botanical Research Institute of Texas. (Botanical Research Institute of Texas, 2008)

Journal of the Botanical Research Institute of Texas - Botanical Research Institute of Texas. (Botanical Research Institute of Texas, 2009)

Journal of the Botanical Research Institute of Texas - Botanical Research Institute of Texas. (Botanical Research Institute of Texas, 2014)

Journal of the Botanical Research Institute of Texas - Botanical Research Institute of Texas. (Botanical Research Institute of Texas, 2014)

Key to the Rocky Mountain flora. Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and parts of Nebraska, South Dakota, North Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (1919)

Key to the Rocky Mountain flora. Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and parts of Nebraska, South Dakota, North Dakota, and British Columbia - Rydberg, Per Axel, 1860 -1931 (1919)

Life zones and crop zones of New Mexico - Bailey, Vernon, 1864 -1942 (G.P.O, 1913)

Life zones and crop zones of New Mexico - Bailey, Vernon, 1864 -1942 (G.P.O, 1913)

List of common and scientific plant names for Utah - United States. Soil Conservation Service. (Or, 1973)

Manual of the grasses of the United States - Chase, Agnes, 1869 -1963 (U.S. Dept. of Agriculture, 1951)

Manual of the grasses of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (1935)

Manual of the grasses of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (1935)

Manual of the grasses of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (U.S. G.P.O, 1935)

Manual of the grasses of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (U.S. G.P.O, 1935)

Manual of the grasses of the United States - Chase, Agnes, 1869 -1963 (U.S. Dept. of Agriculture, 1951)

Manual of the grasses of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (U.S. G.P.O, 1935)

Manual of the grasses of the United States - Chase, Agnes, 1869 -1963 (U.S. Dept. of Agriculture, 1951)

Manual of the grasses of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (U.S. G.P.O, 1935)

Manual of the grasses of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (1935)

Manual of the grasses of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (U.S. G.P.O, 1935)

Manual of the grasses of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (U.S. G.P.O, 1935)

Manual of the grasses of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (U.S. G.P.O, 1935)

Manual of the grasses of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (U.S. G.P.O, 1935)

Monthly report offices of forest experiment stations and dendrology - United States. Forest Service. (1939)

Natural regions, subregions and natural history themes of Alberta : a classification for protected areas management - Achuff, P. L. (Alberta Environmental Protection, 1994)

New manual of botany of the central Rocky mountains (vascular plants) - Coulter, John Merle, 1851 -1928 (American book company, 1909)

New manual of botany of the central Rocky Mountains, vascular plants - Coulter, John Merle, 1851 -1928 (American Book Co, 1909)

New manual of botany of the central Rocky mountains (vascular plants) - Coulter, John Merle, 1851 -1928 (American Book Company, 1909)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1910)

North American flora - New York Botanical Garden (New York Botanical Garden, 1920)

North American flora - New York Botanical Garden (New York Botanical Garden, 1931)

North American flora - New York Botanical Garden (New York Botanical Garden, 1939)

Notes on National Forest range plants - United States. Forest Service. Office of Grazing Studies. (1914)

Notes on National Forest range plants - United States. Forest Service. Office of Grazing Studies. (1914)

Notes on National Forest range plants - United States. Forest Service. Office of Grazing Studies. (1914)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1976)

Phytoneuron (Guy L. Nesom, 2019)

Plantae bakerianae - Greene, Edward Lee, 1843 -1915 (s.n, 1901)

Plantae Bakerianae - Greene, Edward Lee, 1843 -1915 (s.n, 1901)

Plantæ Bakerianæ - Greene, Edward Lee, 1843 -1915 (s.n, 1901)

Les plantes vasculaires rares du Canada : notre patrimoine naturel - Argus, George W. (George William) (Programme des plantes rares et menacées, Musée canadien de la nature, 1990)

Les plantes vasculaires rares du Canada : notre patrimoine naturel - Argus, George W. (George William) (Programme des plantes rares et menacées, Musée canadien de la nature, 1990)

Les plantes vasculaires rares du Canada : notre patrimoine naturel - Argus, George W. (George William) (Programme des plantes rares et menacées, Musée canadien de la nature, 1990)

Les plantes vasculaires rares du Canada : notre patrimoine naturel - Argus, George W. (George William) (Programme des plantes rares et menacées, Musée canadien de la nature, 1990)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1928)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1913)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1906)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2004)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2004)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2004)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2004)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2004)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2004)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2004)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2004)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1978)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1978)

The University of Colorado studies General series A - University of Colorado, Boulder. (University of Colorado, 1902)

The University of Missouri studies Science series - University of Missouri. (The University, 1905)

The University of Missouri studies Science series - University of Missouri. (The University, 1905)

The University of Missouri studies Science series - University of Missouri. (The University, 1907)

Whitehorse Wildland Park management plan - Alberta. Alberta Environment. Natural Resources Service. (Alberta Environment, Natural Resources Service, 2000)