⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record gcc-61772, with some changes.
Aster tanacetifolius var. pygmaeus
is a synonym
of Machaeranthera tanacetifolia
This name is a synonym of Machaeranthera tanacetifolia .
The record derives from TICA which reports it as a synonym (record 7902F59A-0B9D-4BF0-9846-A9615583335F) with original publication details: 206 1884.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:24186-2.