Senecio hydrophilus

water ragwort, alkali-marsh ragwort, alkali-marsh butterweed
Family:Asteraceae

Rarity

CNPS-EB: A2

5 current natural populations

Criteria:
  • Limited/Threatened Habitat
  • Narrow Range in ALA & CCA
  • S Limit
  • Declining

Ecology

Flowers May - September
Habitats:
  • Miscellaneous Wetlands

All Senecio

  • S. aphanactis (*A1x)
  • S. aronicoides (C)
  • S. flaccidus var. douglasii (A2)
  • S. hydrophilus
  • Populations

    Key
    LocationPop IDLast RecordedNotes
    Antioch Dunes62022-07-14
    Antioch Dunes72022-08-11
    Concord Naval Weapons Station82023-05-10
    Corteva Wetlands52022-08-28
    Pittsburg Shore92023-09-26
    Berkeley Hills21941-03-24Historic
    Berkeley Shoreline11888-12-31Historic
    Browns Island31991-08-18Historic
    Martinez shoreline - out of park or specific site unknown41900-06-07Historic