Glacier Lily, Pale Fawn-lily, Yellow Avalanche-lily, Yellow Fawnlily, Yellow Fawn-lily: Erythronium grandiflorum var. grandiflorum (Synonyms: Erythronium grandiflorum ssp. chrysandrum, Erythronium grandiflorum ssp. grandiflorum, Erythronium grandiflorum ssp. nudipetalum, Erythronium grandiflorum var. chrysandrum, Erythronium grandiflorum var. nudipetalum, Erythronium grandiflorum var. pallidum, Erythronium nudipetalum, Erythronium parviflorum) - Flowers yellow. Leaves not mottled.
Alpine Fawnlily, Avalanche Lily, White Avalanche-lily: Erythronium montanum - Flowers white. Leaves not mottled.
Deer's Tongue, Giant Fawnlily, Giant White Fawnlily, Giant White Fawn-lily, Oregon Fawnlily, Wild Easter Lily: Erythronium oreganum (Synonyms: Erythronium giganteum, Erythronium giganteum ssp. leucandrum, Erythronium oregonum ssp. leucandrum, Erythronium oregonum var. leucandrum, Erythronium oregonum ssp. oregonum, Erythronium oregonum var. oregonum) - Flowers white to cream-colored. Leaves mottled with irregular blotches of pale green on a darker greenish background.