Cogswellia utriculata Cogswellia vaseyi Lomatium utriculatum var. utriculatum Peucedanum vaseyi Peucedanum utriculatum Cogswellia caruifolia var. patens Cogswellia caruifolia var. vaseyi Lomatium vaseyi
Taxonomic data from World Flora Online, accessed June 20, 2024