milk thistle
Silybum marianum
Member of
thistles
sunflower family (family Asteraceae)
dicots (class Magnoliopsida)
purple in flowering plants
There are no other wild species of this genus in California.



Chris’s observations: 49 (48 are research grade)
Locations:
- Coyote Lake / Harvey Bear Ranch CP: 9
- Santa Teresa CP: 6
- Calero CP: 4
- Coyote Hills RP: 3
- Ed R. Levin CP: 3
- Russian Ridge OSP: 3
- Sunol Wilderness RP: 3
- Henry Coe SP: 2
- La Honda Creek OSP: 2
- Monte Bello OSP: 2
- Sierra Vista OSP: 2
- Coyote Creek Trail
- DeLaveaga Park, Santa Cruz
- Garin RP
- Long Ridge OSP
- Mission Peak RP
- Máyyan 'Ooyákma Coyote Ridge OSP
- Nisene Marks SP
- Purisima Creek Redwoods OSP
- San Pedro Valley CP
- Sweeney Ridge National Recreation Area
Months:
- Nov.: 1
- Dec.: 0
- Jan.: 0
- Feb.: 1
- Mar.: 4
- Apr.: 13
- May: 16
- Jun.: 10
- Jul.: 4
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Taxon info:
iNaturalist
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Calflora
–
CalPhotos
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Jepson eFlora
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FNA
Bay Area species:
iNaturalist
–
Calflora