This taxon name is current. The available references for this name are:
Acacia karroo Hayne is a nomenclatural synonym.
Reason: See Banfi and Galasso in Atti Soc.Ital.Sci.Nat.Mus.Civico Storia Nat. Milano 149:149(2008).
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A taxon name which is no longer current will retain its ‘Threatened’ status until publication of the next Wildlife Conservation (Rare Flora) Notice.