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


Blowout Penstemon
(Penstemon haydenii)

Staus: Endangered

Blowout PenstemonPhoto Credit: FWS/Bellis


Blowout Penstemon Section 7 Range

Section 7 Range Symbol

Wyoming Section 7 Range
Blowout Penstemon

Potential Distribution in Wyoming

For Species Lists, please use the IPaC System

Section 7 Range

Under Section 7 of the Endangered Species Act of 1973, Federal agencies, or project proponents whose actions have a Federal nexus (e.g., Federal funding, permit, or lease), must consult with the U. S. Fish and Wildlife Service if their actions “may affect” listed species (endangered, threatened, proposed, candidate) or their habitat.  Section 7 species ranges identify those areas on the landscape where agencies or proponents should consider potential effects, both direct and indirect, to the species and their habitat.  These Section 7 species ranges typically encompass larger areas than specific locations where listed species are known to occur.  Project proponents are encouraged to refer to the Service’s Information, Planning, and Conservation System (IPAC) website at http://ecos.fws.gov/ipac/ or to contact the FWS Wyoming Ecological Services Office for additional information http://www.fws.gov/wyominges/ :307-772-2374.  (Section 7 Range boundaries based on the best available data at time of development.  Section 7 Ranges will be updated as new information becomes available.)

Download Section 7 Range GIS Data or Section 7 Range Google Earth layers


Species Information

Blowout penstemon (Penstemon haydenii) is a perennial herb, typically 12 inches or less in height, with 6-10 groups of milky-blue to pale lavender flowers.  The plant’s current known range in Wyoming consists of the Ferris Dunes area in northwest Carbon County, where the plant is restricted to two habitat types:  steep, northwest facing slopes of active sand dunes with less than 5 percent vegetative cover; and north-facing sandy slopes on the lee side of active blowouts with 25-40 percent vegetative cover.  Known populations in Wyoming are found between 6,680-7,440 feet.  Systematic surveys are recommended in areas with sand blowout features at lower elevations (below 6,700 feet).

Blowouts are formed as strong winds deposit sands from the windward side of a dune to the leeward side and create a sparsely vegetated crater-like depression.  Threats to blowout penstemon occur when sand dunes are removed or disturbed by vehicles.  Surveys should be conducted from mid-June to early-July 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 we can refer those wishing to become familiar with blowout penstemon to experts who can provide training/services.
Last updated: March 21, 2014