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⚠ Version 1 of The Plant List has been superseded.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 kew-2614475, with some changes.

M Acanthocalycium griseum Backeb. is a synonym of Echinopsis thionantha (Speg.) D.R.Hunt

This name is a synonym of Echinopsis thionantha (Speg.) D.R.Hunt.

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Descr. Cact. Nov. 3: 5 1963.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:1622-2.