Erigeron petrophilus var. petrophilus

rock daisy
Family:Asteraceae

Rarity

CNPS-EB: B

9 current natural populations

Criteria:
  • Small Populations
  • Declining

Ecology

Flowers May - September
Habitats:
  • Rock, Tallus, Scree
  • Serpentine or Serpentine-derived soils

All Erigeron

  • E. petrophilus var. petrophilus
  • E. philadelphicus var. philadelphicus (C)
  • E. reductus var. angustatus (A1)
  • Populations

    Key
    LocationPop IDLast RecordedNotes
    Mines Road/Arryo Mocho152024-05-29
    Mt. Diablo State Park - South side12022-06-17
    Mt. Diablo State Park - South side22008-12-31
    Mt. Diablo State Park - South side142022-04-02
    Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo42009-06-16
    Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo52022-06-17
    Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo62022-05-12
    Siesta Valley, Lower - EBMUD land132016-07-08
    Tilden Rgnl Park - Lake Anza102003-12-31
    Las Trampas Rgnl Wilderness71991-06-06Historic
    Las Trampas Rgnl Wilderness81969-10-22Historic
    Morgan Territory Rgnl Park91991-12-14Historic
    Mt. Diablo State Park - South side31930-12-31Historic
    Sibley Rgnl Park121993-12-31Historic
    Wildcat Creek111936-12-31Historic