Wyoming Ecological Services
Mountain-Prairie Region

Federally Listed, Proposed & Candidate Species | Species of Concern | Migratory Birds | All Species By County



Federally Listed, Proposed and Candidate Species


Desert Yellowhead
(Yermo xanthocephalus)

Status: Threatened

Desert YellowheadPhoto Credit: FWS - Skora


Desert Yellowhead Area Of Influence

Section 7 Range Symbol

Wyoming Area Of Influence
Desert Yellowhead

Potential Distribution in Wyoming

For Species Lists, please use the IPaC System

Area Of Influence

Areas Of Influence (AOI) identify areas where any project located within should consider potential effects to the Threatened, Endangered, Proposed, and Candidate species and designated and proposed Critical Habitat, in reference to Section 7 of the Endangered Species Act of 1973, as amended.  AOI typically encompass larger areas than simply where the species is known to exist because of direct and indirect effects to the species and their habitat.  It is important to consider potential effects to the species and their habitat within these larger areas.  Action agencies are encouraged to refer to the Service’s Information, Planning, and Conservation System (IPAC) or contact the FWS Wyoming Ecological Services Office for additional information.  (AOI boundaries based on the best available data at time of development.  AOI will be updated as new information becomes available).

Download Area Of Influence GIS Data or Area Of Influence Google Earth layers


Species Information

Desert yellowhead (Yermo xanthocephalus) is a perennial herb with leafy stems up to 12 inches in height.  Flower heads consist of 4–6 yellow disk flowers crowded at the top of the stem.  The desert yellowhead is endemic to the Beaver Rim area on the western edge of the Sweetwater Plateau and Wind River Basin in southern Fremont County, Wyoming.  The plants occur in shallow wind excavated hollows with shallow loamy soils and sparse vegetation.  The main threat to the plant is potential resource extraction, such as uranium mining or oil and gas development.  Additional threats include direct disturbance from activities such as off-road vehicle use and trampling.  Surveys for desert yellowhead should occur from mid-June to August when flowering occurs.  Surveys should be conducted by knowledgeable botanists trained in conducting rare plant surveys.  The Service does not maintain a list of "qualified" surveyors but can refer those wishing to become familiar with desert yellowhead to experts who can provide training/services.  Critical habitat is designated for desert yellowhead in Fremont County, Wyoming and consists of 360 acres of Bureau of Land Management administered lands within Sections 27 and 34, Township 31 North, Range 95 West.

Additional Information

- Desert Yellowhead 5 Year Review

- Desert Yellowhead 2010 Recovery Outline


Desert Yellowhead Critical Habitat

Desert Yellowhead Critical Habitat




Counties with Desert Yellowhead Critical Habitat.

Fremont County

Last updated: April 10, 2015