The following Participating Institutions are custodians for this species in the CPC National Collection:
CPC National Office
The conservation of Parthenium alpinum is fully sponsored.
Jim Locklear contributed to this Plant Profile.
The Wyoming feverfew was lost for over 100 years. First collected in 1834 by famed botanical explorer Thomas Nuttall somewhere along the route that would later become the Oregon Trail, it was not seen again until 1947, when it was rediscovered in central Wyoming. Inhabiting rocky, windswept places on the plains, Wyoming feverfew is an inconspicuous, cushion-forming plant that is easily overlooked even by seasoned botanists.
Distribution & Occurrence
Rocky ridges and hills, flat areas with rocky pavement, gravelly loam and sandy slopes on the plains. Often in association with limestone. Occurs in cushion plant communities within more densely vegetated mixed grass prairie, with Rocky Mountain juniper (Juniperus scopulorum) and ponderosa pine (Pinus ponderosa) sometimes in association.
| Colorado: 2 known occurrences (O'Kane 1988).
Wyoming: ca. 25 known occurrences (Hartman and Nelson 1995).
Conservation, Ecology & Research
Off-road vehicle damage.
Barneby, R.C. 1947. A new monocephalus Parthenium. Leaflets of Western Botany. 5: 19-22.
Goodman, G.J. 1943. The story of Parthenium alpinum. Madroo. 7: 115-118.
Mears, J.A. 1978. Flavonoid diversity and geographic endemism in Parthenium. Biochemical Systematics and Ecology. 8: 361-370.
Porter, C.L. 1949. Notes on the Wyoming flora. University of Wyoming Publications. 14, 3: 49-52.
Rollins, R.C. 1946. The guayule plant and its relatives. Contributions of the Gray Herbarium. No. 172: 1-72.
Spellenberg, R. 1984. Noteworthy Collections: New Mexico. Madroo. 31: 193.
West, J.; Waines, J. G. 1988. Hybridization between Guayule, Parthenium argentatum, and Parthenium alpinum (Asteraceae). Bulletin of the Torrey Botanical Club. 115, 4: 290-296.
Wilden, D.; Harmon, W.; Feddema, C.; Harrington, H.D. 1978. Distributional records for the Colorado flora. Great Basin Naturalist. 38: 208-210.