Taxon Report

Laphamia inyoensis Ferris

Inyo rock daisy

Print Report


© 2019 Cheryl Birker

Taxon Summary

Laphamia inyoensis, commonly known as Inyo rock daisy, is a perennial herb in the Asteraceae that is found only in California. It occurs within Great Basin scrub, and Pinyon and juniper woodland, growing at elevations from 1800 to 2710 meters. Laphamia inyoensis is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

  Classification
Scientific Name:
 Laphamia inyoensis Ferris
Common Name:
 Inyo rock daisy
Family: Asteraceae
Element Code: PDAST700F0
USDA Plants Symbol: PEIN8
Synonyms/Other Names:
  • Perityle inyoensis (Ferris) A.M. Powell

Ecology and Life History
Lifeform: perennial herb
Blooming Period: Jun-Aug Jun-Aug
Elevation: 1800-2710 (5905-8890)
General Habitats: Great Basin scrub, Pinyon and juniper woodland
Microhabitat: Carbonate, Rocky
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 1B.2
Global Rank: G2
State Rank:
 S2
State List: CT
Fed List: None
Other Status: BLM_S; SB_CalBG/RSABG; SB_SBBG
CRPR Changes:

Occurrence Data from the CNDDB
Total Occurrences: 32
Element Occurrence Ranks:
   Excellent (A) 7
   Good (B) 14
   Fair (C) 3
   Poor (D) 0
   None (X) 0
   Unknown (U) 8

Location
California Endemic:  True
California Counties and Islands: Name (Code)
Inyo (INY)
Quads: Name (Quad Code)
Cerro Gordo Peak (3611757), Keeler (3611747), Nelson Range (3611756), Santa Rosa Flat (3611746)

Threat List Data from the CNDDB

Threat List Total: 6
EOs with Threat Listed: Total EOs % of EOs
30 94 %
Mining 29 90%
Non-native plant impacts 8 25%
Road/trail construction/maint. 4 12%
Foot traffic/trampling 3 9%
Other 2 6%
Recreational use (non-ORV) 1 3%

Notes
Threats:
Threatened by proposed mining.
Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 6 March 2025].