Evening-primroses or Suncups: The Genus Camissonia -
Fireweeds: The Genus Chamaenerion -
Enchanter's Nightshade: Circaea alpina ssp. pacifica (Synonyms: Circaea alpina var. pacifica, Circaea pacifica) -
Clarkias and Godetias: The Genus Clarkia -
Willowherbs: The Genus Epilobium -
Groundsmoke: The Genus Gayophytum -
Eastern False Loosestrife, Marsh Seedbox, Marsh Primrose-willow: Ludwigia palustris (Synonyms: Ludwigia palustris var. americana, Ludwigia palustris var. pacifica) -
Evening-primrose: The Genus Oenothera -
The Genus Taraxia - See the Genus Camissonia above.
Hill Suncup Slender-flowered Evening Primrose: Tetrapteron graciliflorum (Synonyms: Camissonia graciliflora, Oenothera graciliflora)