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⚠ Version 1 of The Plant List has been superseded.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-106867, with some changes.

M Harpalium rigidum Cass. 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 and as an invalid name (record 7C53825B-B826-411C-9C0B-A8D15E97D92F) with original publication details: 141 1818.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:211551-1.