| Camissonia contorta | |
| Camissonia strigulosa | |
| Camissoniopsis cheiranthifolia subsp. cheiranthifolia | dune suncup |
| Camissoniopsis hirtella | |
| Camissoniopsis intermedia | |
| Camissoniopsis micrantha | |
| Clarkia affinis | chaparral clarkia |
| Clarkia biloba subsp. biloba | twolobe clarkia |
| Clarkia breweri | Brewer's clarkia |
| Clarkia concinna subsp. automixa | Santa Clara red ribbons |
| Clarkia concinna subsp. concinna | red ribbons |
| Clarkia epilobioides | |
| Clarkia franciscana | Presidio clarkia |
| Clarkia gracilis subsp. gracilis | slender clarkia |
| Clarkia modesta | |
| Clarkia purpurea subsp. purpurea | purple clarkia |
| Clarkia purpurea subsp. quadrivulnera | four-spot |
| Clarkia purpurea subsp. viminea | four-spot |
| Clarkia rhomboidea | |
| Clarkia rubicunda | farewell-to-spring |
| Clarkia tembloriensis subsp. tembloriensis | temblor range clarkia |
| Clarkia unguiculata | elegant clarkia |
| Epilobium brachycarpum | |
| Epilobium campestre | |
| Epilobium canum subsp. canum | California fuschia |
| Epilobium ciliatum subsp. ciliatum | willow-herb |
| Epilobium ciliatum subsp. watsonii | |
| Epilobium cleistogamum | |
| Epilobium densiflorum | |
| Epilobium minutum | |
| Epilobium torreyi | |
| Eremothera boothii subsp. decorticans | shredding evening-primrose |
| Ludwigia hexapetala | Uruguayan primrose-willow |
| Ludwigia peploides subsp. montevidensis | water-primrose |
| Ludwigia peploides subsp. peploides | |
| Oenothera biennis | common evening-primrose |
| Oenothera deltoides subsp. cognata | |
| Oenothera deltoides subsp. howellii | Antioch Dunes evening-primrose |
| Oenothera elata subsp. hookeri | evening primrose |
| Oenothera glazioviana | |
| Oenothera laciniata | |
| Oenothera sinuosa | wavyleaf gaura |
| Oenothera xenogaura | |
| Taraxia ovata | sun cup |
| Tetrapteron graciliflorum | hill suncup |