⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2693780, and has not been changed.

Caltha biflora subsp. howellii (Huth) Abrams is a synonym of Caltha leptosepala var. howellii Huth

This name is a synonym of Caltha leptosepala var. howellii Huth.

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Ill. Fl. Pacific States 2: 175 1944.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:42842-2.