⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-35103096, with some changes.
This name is a synonym of Calliergon richardsonii var. lanatum .
The record derives from Tropicos which reports it as a synonym (record 35103096
) with original publication details: Bot. Not. 1907: 144 144 1907.