⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-80371, with some changes.

Euphorbia johnsonii N.E.Br. is a synonym of Euphorbia knuthii Pax

This name is a synonym of Euphorbia knuthii Pax.

The record derives from WCSP which reports it as a synonym (record 80371) with original publication details: Fl. Trop. Afr. 6(1): 571 1911.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:346964-1.