⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-35153463, and has not been changed.
This name is a synonym of Calliergon richardsonii f. islandicum .
The record derives from Tropicos which reports it as a synonym (record 35153463
) with original publication details: Ber. Schweiz. Bot. Ges. 50: 496. f. 4 496 1940.