This taxon name is current. The available references for this name are:
Conyza sumatrensis (Retz.) E.Walker is a nomenclatural synonym.
Reason See National Species List. https://id.biodiversity.org.au/instance/apni/6990363 [accessed 30/11/2020]
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A taxon name that is no longer current will retain its ‘Threatened’, ‘Extinct’, or ‘Extinct in the Wild’ status until a new name has been published in a Biodiversity Conservation Order.