⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-13063328, with some changes.

Astragalus haydenianus f. nelsonii Gand. is a synonym of Astragalus bisulcatus (Hook.) A.Gray

This name is a synonym of Astragalus bisulcatus (Hook.) A.Gray.

The record derives from Tropicos which reports it as a synonym (record 13063328) with original publication details: Bull. Soc. Bot. France 48: xv xv 1901.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:24953-2.