The Genus Corallorhiza

Pacific Coralroot, Spotted Coralroot, Spotted Coral Root, Summer Coralroot: Corallorhiza maculata (Synonyms: Corallorhiza maculata var. immaculata, Corallorhiza maculata var. maculata, Corallorhiza maculata var. occidentalis) - Petals and sepals not prominently striped. Sepals 6-13 mm long. Lower lip whitish with numerous red spots around its margin and on its palate. Unspotted plants and albinos may be seen in some populations.

Merten's Coralroot, Merten's Coral Root, Pacific Coralroot, Western Coralroot: Corallorhiza mertensiana (Synonyms: Corallorhiza maculata ssp. mertensiana, Corallorhiza purpurea) - Petals and sepals not prominently striped. Sepals 6-13 mm long. Lower lip deep pink to reddish and generally unspotted except for 2 bumps near the midrib.

Striped Coralroot, Striped Coral Root, Hooded Coralroot: Corallorhiza striata var. striata (Synonyms: Corallorhiza macraei, Corallorhiza ochroleuca, Corallorhiza striata var. flavida, Corallorhiza striata var. ochroleuca) - Petals and sepals noticeably striped, the stripes reddish-brown to purple or reddish on a creamy base.

Early Coralroot, Northern Coral Root, 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.