Synonyms
Polyctenium williamsiae Rollins
Smelowskia fremontii S.Watson
Smelowskia fremontii var. glabella (Greene) O.E.Schulz
Smelowskia fremontii var. bisulcata (Greene) O.E.Schulz
Polyctenium bisulcatum Greene
Polyctenium fremontii var. confertum Rollins
Polyctenium fremontii var. bisulcatum (Greene) Rollins
Polyctenium fremontii var. typicum Rollins
Polyctenium glabellum Greene