Cirsium andrewsii

Franciscan thistle
Family:Asteraceae

Rarity

CNPS-EB: *A1
State CNPS: 1B.2
Global Rank: G3
CNDDB Rank: S3

2 current natural populations

Criteria:
  • Limited/Threatened Habitat

Ecology

Flowers May - September
Habitats:
  • Freshwater Marsh
  • Serpentine or Serpentine-derived soils
  • Miscellaneous

Synonyms

  • Cirsium mendocinum

Populations

Key
LocationPop IDLast RecordedNotes
Lily Spring, San Pablo Ridge - EBMUD land12024-07-10
Siesta Valley, Lower - EBMUD land22016-07-10
San Pablo Reservoir - EBMUD32009-11-02ID Uncertain