Spotted Coralroot, Pacific Coralroot: Corallorhiza maculata var. maculata (Synonyms: Corallorhiza multiflora, Corallorhiza multiflora var. sulphurea, Corallorhiza vancouveriana) - Lower lip of flower bright white with red spots, not or barely expanded at the tip. Unspotted plants and albinos may be seen in some populations.
Pacific Coralroot, Spotted Coralroot, Spotted Coral Root, Summer Coralroot, Western Spotted Coralroot: Corallorhiza maculata var. occidentalis (Synonyms: Corallorhiza grab-hamii, Corallorhiza leimbachiana, Corallorhiza maculata ssp. occidentalis, Corallorhiza multiflora var. occidentalis) - Lower lip of flower bright white with red spots, expanded at the tip. Unspotted plants and albinos may be seen in some populations.
Ozette Coralroot: Corallorhiza maculata var. ozettensis -
Merten's Coralroot, Merten's Coral Root, Pacific Coralroot, Western Coralroot: Corallorhiza mertensiana (Synonyms: Corallorhiza maculata ssp. mertensiana, Corallorhiza purpurea) -
Hooded Coralroot, Striped Coralroot: Corallorhiza striata var. striata (Synonym: Corallorhiza macraei) - Sepals and petals pinkish-yellow and strongly 3-5 striped, 8-18 mm long and spreading fairly widely but with the tips pointing forwards.
Vreeland's Striped Coralroot: Corallorhiza striata var. vreelandii (Synonyms: Corallorhiza bigelovii, Corallorhiza ochroleuca, Corallorhiza striata var. flavida, Corallorhiza vreelandii) - Sepals and petals pinkish-yellow and strongly 3-5 striped, 5-11 mm long and not expanding, the flower appearing somewhat closed.
Early Coralroot, Northern Coralroot, Yellow Coralroot: Corallorhiza trifida (Synonyms: Corallorhiza corallorhiza, Corallorhiza corallorhiza var. coloradensis, Corallorhiza innata, Corallorhia trifida var. verna, Corallorhiza verna, Corallorhiza wyomingensis) - Petals and sepals not prominently striped. Sepals 5-6 mm long, greenish-yellow to yellowish to off-white.
Spring Coralroot, Wister's Coralroot: Corallorhiza wisteriana -