Davidse - 37560 - United States
Davidse - 39989 - United States
Drees - s.n. - United States
LaPlante - 799 - United States
Merello - 1552 - United States
Physostegia virginiana subsp. virginiana
Summers - 7972 - United States
Turner - 14-164 - United States
Turner - 14-168 - United States