⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-102748, and has not been changed.

Isanthus coeruleus Michx. is a synonym of Trichostema brachiatum L.

This name is a synonym of Trichostema brachiatum L..

The record derives from WCSP which reports it as a synonym (record 102748) with original publication details: Fl. Bor.-Amer. 2: 4 1803.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:448552-1.