author
1855–1932
A pioneering American botanist, he spent decades studying poisonous plants and the risks they posed to livestock in the American West. His careful fieldwork helped turn a practical ranching problem into a serious scientific subject.

by V. T. (Vickers T.) Atkinson, Dr. (William) Dickson, A. (Adolph) Eichhorn, Richard W. (Richard West) Hickman, James Law, (Dr.) (William Herbert) Lowe, C. Dwight (Charles Dwight) Marsh, John R. (John Robbins) Mohler, A. J. (Alexander James) Murray, Leonard Pearson, Brayton Howard Ransom, M. R. (Milton R.) Trumbower, United States. Bureau of Animal Industry, Dr. (Benjamin Tilghman) Woodward
Born in 1855, Charles Dwight Marsh was an American botanist whose career became closely tied to the study of toxic plants. He is best remembered for research on species that poisoned cattle and sheep, work that connected botany with agriculture in a direct, practical way.
Marsh worked with the U.S. Department of Agriculture and published studies on poisonous plants that affected western grazing lands. His writing focused on identifying dangerous species, understanding how they harmed animals, and helping stockmen reduce losses.
He died in 1932. Though not a household name today, Marsh's work sits at an interesting crossroads of plant science, animal health, and the everyday realities of ranching in the United States.