| Scientific Name | Common Name | Local Rank |
|---|---|---|
| Ceanothus leucodermis | chaparral whitethorn | A2 |
| Ceanothus thyrsiflorus var. thyrsiflorus | blue blossom, California lilac | B |
| Frangula californica subsp. tomentella | hoary coffeeberry | B |
| Rhamnus crocea | spiny redberry | B-PV |