⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-105789, and has not been changed.

Keiskea japonica f. rubra Kigawa is a synonym of Collinsonia japonica (Miq.) Harley

This name is a synonym of Collinsonia japonica (Miq.) Harley.

The record derives from WCSP which reports it as a synonym (record 105789) with original publication details: Bull. Kanagawa Pref. Mus., Nat. Sci. 18: 22 1989.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:964952-1.