⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-339507, and has not been changed.

Tithymalus marginatus var. tetramerus Cockerell is a synonym of Euphorbia marginata Pursh

This name is a synonym of Euphorbia marginata Pursh.

The record derives from WCSP which reports it as a synonym (record 339507) with original publication details: Fl. Boulder Colorado 165 1911.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:254803-2.