Batrachium circinatum subsp. subrigidum (W.B. Drew) Á. Löve & D. Löve
Batrachium circinatum subsp. subrigidum (W.B. Drew) Á. Löve & D. Löve is a synonym sensu Wiegleb et al., 2017 of:
Ranunculus subrigidus W.B. Drew, an accepted species name sensu Wiegleb et al., 2017.