The Plant List — A working list for all plant species

⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-106179, with some changes.

H Koellia flexuosa (Walter) MacMill. is a synonym of Pycnanthemum flexuosum (Walter) Britton, Sterns & Poggenb.

This name is a synonym of Pycnanthemum flexuosum (Walter) Britton, Sterns & Poggenb..

The record derives from WCSP which reports it as a synonym (record 106179) with original publication details: Metasp. Minnesota Valley 452 1892.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:448669-1.