| Moehringia macrophylla | large-leaved sandwort, big-leaf sandwort | A2 |
| Sabulina californica | California sandwort | A1 |
| Sabulina pusilla | annual sandwort, least sandwort | A1 |
| Sagina decumbens subsp. occidentalis | western pearlwort | B |
| Silene antirrhina | sleepy catchfly, snapdragon catchfly | A1 |
| Silene laciniata subsp. californica | Indian pink, California pink, California Indian pink | C |
| Silene lemmonii | LEMMON'S CATCHFLY | A1 |
| Silene verecunda | San Francisco campion, Cuyamaca campion | A1 |
| Spergularia macrotheca var. leucantha | large-flowered sand spurry | A2 |
| Spergularia macrotheca var. longistyla | large-flowered sand spurry | *A2 |
| Spergularia macrotheca var. macrotheca | large-flowered sand spurry | A2 |
| Stellaria nitens | shining chickweed | C |
| Spergularia macrotheca var. unknown | large-flowered sand spurry | A2? |