This taxon name is current. The available references for this name are:
Calocephalus brownii (Cass.) F.Muell. is a nomenclatural synonym.
Reason See P.S. Short in J.Adelaide Bot.Gard. 29:208 (2016)
See also: A longer explanation of these and other terms in our Plant Names Primer.
A taxon name that is no longer current will retain its ‘Threatened’, ‘Extinct’, or ‘Extinct in the Wild’ status until a new name has been published in a Biodiversity Conservation Order.