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⚠ Version 1 of The Plant List has been superseded.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-85984, with some changes.

M Helianthus couplandii B.Boivin is a synonym of Helianthus petiolaris subsp. petiolaris Nutt.

This name is a synonym of Helianthus petiolaris subsp. petiolaris Nutt..

The record derives from TICA which reports it as a synonym (record 0E7A46DE-2D94-435F-B556-79EA650BC331) with original publication details: 72 1972.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:119083-2.