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⚠ Version 1 of The Plant List has been superseded.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-57962, with some changes.

L Helianthus × laetiflorus var. rigidus (Cass.) Fernald is a synonym of Helianthus pauciflorus subsp. pauciflorus Nutt.

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

The record derives from TICA which reports it as a synonym (record A1452B1B-5083-4E62-951B-8AC23EB8C973) with original publication details: Rhodora 48: 79 79 1946.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:119154-2.