Chauncey Delos Beadle (August 5, 1866 – 1950) was a Canadian-born botanist and horticulturist active in the southern United States.
In 1890 the landscape architect Frederick Law Olmsted hired him to oversee the nursery at Biltmore Estate in Asheville, North Carolina on a temporary basis.
The group traveled over the eastern United States for a period of fifteen years, studying and collecting native plants.
[1][2][3] Beadle wrote scientific papers describing new species and varieties of North American plants, for example, papers in the journal Biltmore Botanical Studies and his major work on the genus Crataegus (hawthorns) in John Kunkel Small's 1903 book Flora of the Southeastern United States.
(See, for example, this reference at the Wayback Machine (archived September 5, 2007) to the scientific description of Florida Mock-orange, Philadelphus floridus.)