German-American botanical traveler whose Flora Americae Septentrionalis, a book published in England in 1814, was the earliest attempt to describe the complete flora of North America. Pursh eked out a living working as a gardener for others; he traveled and collected plant specimens throughout the eastern United States, and also studied plants collected in the West by Lewis and Clark. He was making a collection of Canadian plants when he died a pauper in Montreal.
"Frederick Pursh." Science and Its Times: Understanding the Social Significance of Scientific Discovery. . Encyclopedia.com. (September 20, 2018). http://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/frederick-pursh
"Frederick Pursh." Science and Its Times: Understanding the Social Significance of Scientific Discovery. . Retrieved September 20, 2018 from Encyclopedia.com: http://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/frederick-pursh