Cardinal Larkspur, Scarlet Larkspur: Delphinium cardinale
Cuyamaca Larkspur, Foothill Larkspur: Delphinium hesperium ssp. cuyamacae
Colorado Desert Larkspur, Intermediate Larkspur, Oceanblue Larkspur: Delphinium parishii ssp. subglobosum (Synonym: Delphinium subglobosum)
Parry's Larkspur, San Bernadino Larkspur: Delphinium parryi ssp. parryi (Synonyms: Delphinium parryi subsp. seditiosum; Delphinium hesperium var. seditiosum)
Spreading Larkspur, Zigzag Larkspur: Delphinium patens ssp. hepaticoideum