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⚠ Version 1 of The Plant List has been superseded.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-171034, with some changes.

H Pycnanthemum aristatum Michx. 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 and as an illegitimate name (record 171034) with original publication details: Fl. Bor.-Amer. 2: 8 1803.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:455207-1.