Purple Sanicle, Purple Snakeroot, Purple Black-snakeroot: Sanicula bipinnatifida (Synonym: Sanicula bipinnatifida var. flava) -
Pacific Sanicle, Pacific Snakeroot, Western Snakeroot: Sanicula crassicaulis (Synonyms: Sanicula crassicaulis var. crassicaulis, Sanicula crassicaulis var. tripartita, Sanicula menziesii, Sanicula tripartita) - Generally a species found west of the Cascade crest, this species can be foun eastward in the Columbia Gorge to near The Dalles, OR as well as northwards into the Klickitat River drainage and Simcoe Mts.
Northern Sanicle, Sierra Sanicle, Sierra Snakeroot, Sierran Black-snakeroot: Sanicula graveolens (Synonyms: Sanicula apiifolia, Sanicula graveolens var. graveolens, Sanicula graveolens var. septentrionalis, Sanicula nevadensis, Sanicula nevadensis var. septentrionalis, Sanicula septentrionalis) -
Maryland Sanicle, Maryland Black-snakeroot: Sanicula marilandica (Synonyms: Caucalis mirilandica, Sanicula canadensis var. marilandica, Sanicula marilandica var. petiolulata) -