1997 IUCN red list of threatened plants (1997)

2002 list of ecological comm[u]nities for Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2002)

75 years in the nation's capital : 1889 1964 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.W. Bolgiano, 1964)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1989)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1991)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1992)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1994)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1995)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1997)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1998)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1999)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2000)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2003)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2004)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2007)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2008)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2009)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2010)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2011)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2012)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2013)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2014)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2015)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2016)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2017)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2018)

Adansonia - Muséum national d'histoire naturelle (France) (Muséum d'histoire naturelle, Laboratoire de Phanérogamie, 1969)

Adansonia; recueil d'observations botaniques - Baillon, H. (Henri), 1827 -1895 (H. Baillon et F. Savy, 1867)

Addisonia : colored illustrations and popular descriptions of plants - New York Botanical Garden (New York Botanical Garden, 1931)

An addition to the fauna of the United States, the Chihuahua ridge-nosed rattlesnake in New Mexico - Bogert, Charles M. (Charles Mitchill), 1908 -1992 (American Museum of Natural History, 1961)

Additions to the flora of Connecticut - Harger, Edgar Burton, 1867 - (New England Botanical Club, 1917)

Agave : quarterly magazine of the Desert Botanical Garden - Desert Botanical Garden (Ariz.) (The Garden, 1986)

Agave : quarterly magazine of the Desert Botanical Garden - Desert Botanical Garden (Ariz.) (The Garden, 1987)

Agave : quarterly magazine of the Desert Botanical Garden - Desert Botanical Garden (Ariz.) (The Garden, 1989)

Agricultural botany - Darlington, William, 1782 -1863 (J. W. Moore, 1847)

Agricultural botany an enumeration and description of useful plants and weeds, which merit the notice, or require the attention, of American agriculturists - Darlington, William, 1782 -1863 (J.W. Moore, 1847)

The agricultural grasses and forage plants of the United States - Vasey, George, 1822 -1893 (Govt. Print. Off, 1889)

The agricultural grasses and forage plants of the United States; and such foreign kinds as have been introduced - United States. Division of Botany. (Govt. print. off, 1889)

The agricultural grasses of the United States - United States. Division of Botany. (G.P.O, 1884)

Agriculture handbook - United States. Office of Experiment Stations. (U.S. Dept. of Agriculture, 1960)

Agrostidea - Trinius, Carl Bernhard, 1778 -1844 (Typis Academiae Caesareae Scientiarum, 1840)

Alien plants growing without cultivation in California - Robbins, Wilfred William, 1884 -1952 (California Agricultural Experiment Station, College of Agriculture, University of California, 1940)

Allan Hancock Atlantic expedition - Allan Hancock Foundation. (The University, 1945)

Allan Hancock Pacific expeditions. [Reports] - Allan Hancock Foundation. (University of Southern California Press, 1946)

Allgemeines Polyglotten-Lexicon der Naturgeschichte mit erklaerenden Anmerkungen - Nemnich, Philipp Andreas, 1764 -1822 (Nemnich, 1793)

American agriculturist (Orange Judd Co., Publishers [etc.], 1879)

American agriculturist (Orange Judd Co., Publishers [etc.], 1880)

American agriculturist (Orange Judd Co., Publishers [etc.], 1881)

American agriculturist, for the farm, garden and household (Orange Judd Co, 1873)

The American botanist and florist; including lessons in the structure, life, and growth of plants; together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the American union - Wood, Alphonso, 1810 -1881 (A.S. Barnes & company, 1870)

The American botanist and florist: including lessons in the structure, life, and growth of plants; together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the American union - Wood, Alphonso, 1810 -1881 (A. S. Barnes, 1870)

The American botanist and florist : including lessons in the structure, life, and growth of plants : together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the Americ by Alphonso Wood - Wood, Alphonso, 1810 -1881 (A. S. Barnes, 1877)

The American botanist and florist, including lessons in the structure, life growth of plants, together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the American union - Wood, Alphonso, 1810 -1881 (Barnes, 1900)

The American botanist and florist: including lessons in the structure, life, and growth of plants; together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the American union - Wood, Alphonso, 1810 -1881 (A. S. Barnes & Company, 1873)

The American botanist : a monthly journal for the plant lover - Clute, Willard Nelson, 1869 -1950 (Willard N. Clute & Co, 1907)

The American botanist : a monthly journal for the plant lover - Clute, Willard Nelson, 1869 -1950 (Willard N. Clute & Co, 1910)

The American farmer. A complete agricultural library, with useful facts for the household, devoted to farming in all its departments and details - Flint, Charles Louis, 1824 -1889 (R. H. Park, 1882)

The American farmer ; a complete agricultural library, with useful facts for the household, devoted to farming in all its departments and details ... - Flint, Charles Louis, 1824 -1889 (R.H. Park, 1882)

American farming and stock raising, with useful facts for the household, devoted to farming in all its departments - Flint, Charles Louis, 1824 -1889 (Casselberry, 1892)

American fern journal - American Fern Society. (American Fern Society, 1910)

American fern journal - American Fern Society. (American Fern Society, 1913)

American fern journal - American Fern Society. (American Fern Society, 1914)

American fern journal - American Fern Society. (American Fern Society, 1922)