The purpose of this project, conducted during July and August, 1967, at the Jackson Hole Research Station, was to study variations within the local populations of Castilleja. Ninety-six specimens were collected from 11 sites at elevations ranging from 6,750 to 9,000 feet in Grand Teton National Park, Teton National Forest, and Yellowstone National Park.
Noble, Susan Jane
"A Study of the Variability in Five Species of Castilleja in the Vicinity of Jackson Hole Research Station,"
Jackson Hole Research Station Annual Report: Vol. 1967
, Article 17.
Available at: http://repository.uwyo.edu/jhrs_reports/vol1967/iss1/17