This taxon name is current. The available references for this name are:
Philotheca hassellii F.Muell. is a nomenclatural synonym.
Reason See Paul G. Wilson in Fl.Australia 26:429 (2013)
Drummondita hassellii (F.Muell.) Paul G.Wilson var. hassellii is a nomenclatural synonym.
Reason Not varieties recognised.
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A taxon name that is no longer current will retain its ‘Threatened’, ‘Extinct’, or ‘Extinct in the Wild’ status until a new name has been published in a Biodiversity Conservation Order.