The Plant List — A working list for all plant species

⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record gcc-119972, with some changes.

M Helianthus severus E.Watson is a synonym of Helianthus × laetiflorus Pers.

This name is a synonym of Helianthus × laetiflorus Pers..

The record derives from TICA which reports it as a synonym (record AAE616D2-79B7-4237-B1E3-C66C936486DA) with original publication details: 1929.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:212263-1.