⚠ Version 1 of The Plant List has been superseded.

This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Horkelia tweedyi in version 1.1 of The Plant List.

Horkelia tweedyi (Rydb.) A. Nelson & J.F. Macbr. is a synonym of Potentilla tweedyi (Rydb.) J.T. Howell

This name is a synonym of Potentilla tweedyi (Rydb.) J.T. Howell.

The record derives from Tropicos which reports it as a synonym (record 50107463) with original publication details: Bot. Gaz. 61(1): 31 31 1916.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:124060-2.