Cascade False-hellebore, Tailed False-hellebore: Veratrum californicum var. caudatum (Synonym: Veratrum caudatum) -
California False Hellebore, Californica Wild Hellebore, White False Hellebore, Skunk Cabbage: Veratrum californicum var. californicum (Synonyms: Veratrum eschscholtzii var. watsonii, Veratrum jonesii, Veratrum speciosum) - White tepals. Panicles spread and ascend.
Green False Hellebore, American Wild Hellebore: Veratrum viride var. eschscholzianum (Synonyms: Veratrum eschscholtzianum, Veratrum eschscholtzii var. incriminatum, Veratrum viride ssp. eschscholtzii) - Greenish tepals. Panicles droop.