⚠ Version 1 of The Plant List has been superseded.

This name record (from WCSP (in review)) 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 Echium bifrons in version 1.1 of The Plant List.

Echium bifrons var. hierrense (Webb ex Bolle) H.Christ is a synonym of Echium hierrense Webb ex Bolle

This name is a synonym of Echium hierrense Webb ex Bolle.

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Bot. Jahrb. Syst. 9: 127 1888.