Hook. & Arn.
Identity
Unique IDELEMENT_GLOBAL.2.142618
Element CodePDAST200G0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderAsterales
FamilyAsteraceae
GenusChaenactis
Other Common NamesEsteve's Pincushion (EN) Esteve's pincushion (EN)
Concept ReferenceKartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2024-06-25
Change Date2002-09-08
Edition Date2024-06-25
Edition AuthorsGries, D. (1998), rev. N. Ventrella (2024)
Threat ImpactUnknown
Range Extent200,000-2,500,000 square km (about 80,000-1,000,000 square miles)
Number of Occurrences> 300
Rank ReasonsChaenactis stevioides is an annual herb occurring in arid or semiarid, gravelly or sandy, open slopes, flats, and shrublands of western North America from Oregon east to Wyoming south to New Mexico and California, United States and Baja and Sonora, Mexico. There are over 1,000 occurrences of this species, which are potentially threatened by development, rights-of-way maintenance, and invasive species. However, with a large range extent, over 300 occurrences, and broad habitat preferences for abundant habitat, this species is considered secure.
Range Extent CommentsChaenactis stevioides occurs in western North America from Oregon east to Wyoming, south to New Mexico, and west to California in the United States, and in Sonora and Baja, Mexico (FNA 2006). Range extent was estimated to be 1.4 million square kilometers using herbarium specimens and photo-based observations documented between 1993 and 2024 (GBIF 2024, iNaturalist 2024, SEINet 2024).
Occurrences CommentsBy applying a 1 km separation distance to herbarium specimens and photo-based observations documented between 1993 and 2023, it is estimated that there are over 1,000 occurrences rangewide (GBIF 2024, iNaturalist 2024, SEINet 2024).
Threat Impact CommentsChaenactis stevioides is potentially threatened by development, rights-of-way maintenance, invasive species, and other threats in some places. However, they are considered negligible given this species' broad range and large number of occurrences, its somewhat flexible and abundant habitat, as well as no obvious intrinsic vulnerabilities.