These are plants that the CNPS Rare Plant Inventory says occur only in Marin.
- Arctostaphylos montana ssp. montana
- Arctostaphylos virgata
- Calochortus tiburonensis
- Ceanothus decornutus
- Ceanothus gloriosus var. porrectus
- Ceanothus masonii
- Chorizanthe valida
- Clarkia concinna ssp. raichei
- Delphinium bakeri
- Lessingia micradenia var. micradenia
- Piperia elegans ssp. decurtata
- Quercus parvula var. tamalpaisensis
- Sidalcea hickmanii ssp. viridis
- Stellaria littoralis
- Streptanthus anomalus
- Streptanthus batrachopus
- Streptanthus glandulosus ssp. niger
- Streptanthus glandulosus ssp. pulchellus
Refer to CNPS Rare Plant Inventory for Marin for more information about each species.