⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record ild-28706, with some changes.

Xylophacos melanocalyx Rydb. is a synonym of Astragalus amphioxys A.Gray

This name is a synonym of Astragalus amphioxys A.Gray.

The record derives from ILDIS which reports it as a synonym (record 28706).

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:269733-2.