Athyrium americanum (Butters) Maxon
Athyrium americanum (Butters) Maxon is a synonym sensu FNA Ed. Comm., 1993 of:
Pseudathyrium alpestre subsp. americanum (Butters) ined., an accepted subspecies name sensu Hassler, 2014-2024+.
Athyrium americanum (Butters) Maxon is a synonym sensu FNA Ed. Comm., 1993 of:
Pseudathyrium alpestre subsp. americanum (Butters) ined., an accepted subspecies name sensu Hassler, 2014-2024+.