⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2656824, and has not been changed.
This name is a synonym of Astilbe thunbergii var. congesta .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Keys Herb. Pl. Jap. 1(Dicot.): 733 1965.