⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-75514, with some changes.
Argyroxiphium macrocephalum
is a synonym
of Dubautia sandwicensis subsp. macrocephala
This name is a synonym of Dubautia sandwicensis subsp. macrocephala .
The record derives from TICA which reports it as a synonym (record 5B9198B2-DC30-47F5-B975-629BC2EB03A9) with original publication details: 160 1852.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:178840-1.