This taxon name is not current. The available references for this name are:
Panicum maximum (Jacq.) R.D.Webster var. maximum is more recently known as Urochloa maxima (Jacq.) R.D.Webster var. maxima
Reason See Webster in Austral.Paniceae 241(1987)
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A taxon name that is no longer current will retain its ‘Threatened’, ‘Extinct’, or ‘Extinct in the Wild’ status until a new name has been published in a Biodiversity Conservation Order.