Identity
Unique IDELEMENT_GLOBAL.2.793494
Element CodePDHYD0C560
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderSolanales
FamilyHydrophyllaceae
GenusPhacelia
Concept ReferenceWelsh, S.L., N.D. Atwood, S. Goodrich and L.C. Higgins. (Eds.) 2003. A Utah Flora. 3rd edition. Brigham Young University, Provo, Utah, U.S.A. 912 pp.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2020-02-20
Change Date2020-02-20
Edition Date2020-02-20
Edition AuthorsTreher (2020)
Threat ImpactVery high
Range Extent<100 square km (less than about 40 square miles)
Number of Occurrences1 - 5
Rank ReasonsPhacelia argylensis is endemic to the Argyle Canyon in Duchesne County, Utah, U.S.A. There is likely only one occurrence with multiple sites along the canyon. A flood in 2018 killed all of the 51 known plants. Future surveys will be important to determine if this plant reestablishes in its habitat in the Argyle Canyon. The species is also seriously threatened by residential development and a potential train route.
Range Extent CommentsPhacelia argylensis is endemic to the Argyle Canyon in Duchesne County, Utah, U.S.A.
Occurrences CommentsThere may only be one occurrence depending on the continuity of habitat and distance between sites.
Threat Impact CommentsThis species has multiple serious threats. It occurs on private land where homes are being built and a railway route planned for the valley where it occurs. Fires on the slopes above, have increased erosion at the sites. Herbivory is a potential threat.