⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Avenastrum sulcatum in version 1.1 of The Plant List.
This name is a synonym of Helictotrichon marginatum .
The record derives from Tropicos which reports it as a synonym (record 50189884
) with original publication details: Bull. Misc. Inform. Kew 1928(4): 155 155 1928.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:391935-1
.