⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-35165569, and has not been changed.
This name is a synonym of Mittenothamnium laxulum .
The record derives from Tropicos which reports it as a synonym (record 35165569
) with original publication details: Contr. U.S. Natl. Herb. 26: 113. f. 39: f--j 113 1928.