This taxon name is current. The available references for this name are:
Canthium attenuatum Benth. is a nomenclatural synonym.
Reason: See S.T. Reynolds & R.J.F. Henderson in Austrobaileya 6:857 (2004)
See also: A longer explanation of these and other terms in our Plant Names Primer.
A taxon name which is no longer current will retain its ‘Threatened’ status until publication of the next Wildlife Conservation (Rare Flora) Notice.