| Camissonia campestris subsp. campestris | Mojave suncup | A1x |
| Camissonia contorta | contorted primrose | C |
| Camissonia strigulosa | contorted primrose | A1 |
| Camissoniopsis cheiranthifolia subsp. cheiranthifolia | dune suncup | A1 |
| Camissoniopsis hirtella | small primrose | B |
| Camissoniopsis intermedia | small primrose | C |
| Camissoniopsis micrantha | small primrose | C |
| Clarkia biloba subsp. biloba | lobed godetia | A2 |
| Clarkia breweri | Brewer's clarkia | *A1 |
| Clarkia concinna subsp. automixa | Santa Clara red ribbons | *A2 |
| Clarkia concinna subsp. concinna | large godetia | C |
| Clarkia epilobioides | | A1 |
| Clarkia franciscana | Presidio clarkia | *A1 |
| Clarkia gracilis subsp. gracilis | summer's darling | C |
| Clarkia modesta | modest clarkia | A2 |
| Clarkia purpurea subsp. purpurea | purple clarkia | A2 |
| Clarkia purpurea subsp. viminea | large godetia | A1 |
| Clarkia rhomboidea | | A1 |
| Clarkia tembloriensis subsp. tembloriensis | temblor clarkia | A1 |
| Epilobium campestre | smooth boisduvalia | B |
| Epilobium ciliatum subsp. watsonii | San Francisco willowherb | A1 |
| Epilobium cleistogamum | cleistogamous boisduvalia | A1 |
| Epilobium torreyi | narrow-leaved boisduvalia | A1 |
| Eremothera boothii subsp. decorticans | shredding evening-primrose | A1 |
| Ludwigia palustris | American marsh purslane | A1x |
| Oenothera deltoides subsp. cognata | desert evening-primrose | A2 |
| Oenothera deltoides subsp. howellii | Antioch Dunes evening-primrose | *A2 |
| Oenothera elata subsp. hookeri | evening-primrose | B |
| Tetrapteron graciliflorum | hill sun cup | C |
| Clarkia purpurea subsp. unknown | clarkia | A1? |