bull thistle
Cirsium vulgare
Member of
plume thistles (genus Cirsium)
thistles
sunflower family (family Asteraceae)
dicots (class Magnoliopsida)
purple in flowering plants


Chris’s observations: 53 (48 are research grade)
Locations:
- Sam McDonald CP: 4
- Butano SP: 3
- Dr. Aurelia Reinhardt Redwood RP: 3
- Bear Creek Redwoods OSP: 2
- El Corte de Madera OSP: 2
- Monte Bello OSP: 2
- Nisene Marks SP: 2
- Pescadero Creek CP: 2
- Russian Ridge OSP: 2
- San Bruno Mountain State & County Park: 2
- Sanborn CP: 2
- Sibley Volcanic RP: 2
- Wilder Ranch SP: 2
- Wunderlich CP: 2
- Alpine Rd.
- Andrew Molera SP
- Big Basin SP
- Coyote Hills RP
- Ed R. Levin CP
- Joaquin Miller Park, Oakland
- La Honda Creek OSP
- Lake Chabot RP
- Long Ridge OSP
- McNee Ranch / Montara Mountain SP
- Mt. Madonna SP
- Mt. Tamalpais Watershed
- Murray Ranch SP
- Point Lobos SP
- Portola Redwoods SP
- Purisima Creek Redwoods OSP
- San Pedro Valley CP
- Skyline Ridge OSP
- Stevens Creek CP
- Sweeney Ridge National Recreation Area
- Thornewood OSP
Months:
- Apr.: 1
- May: 0
- Jun.: 1
- Jul.: 17
- Aug.: 20
- Sep.: 9
- Oct.: 2
- Nov.: 2
- Dec.: 1
For more details, use advanced search.
Taxon info:
iNaturalist
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Calflora
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CalPhotos
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Jepson eFlora
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FNA
Bay Area species:
iNaturalist
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Calflora