Botrychium virginianum subsp. europaeum (Ångstr.) R. T. Clausen in Mem. Torrey Bot. Club 19: 101. 1938
Botrychium virginianum subsp. europaeum in Mem. Torrey Bot. Club 19: 101. 1938
is new combination for Botrychium virginianum var. europaeum in Nya Bot. Not. 1854: 68. 1854
Botrychium virginianum subsp. europaeum in Mem. Torrey Bot. Club 19: 101. 1938