This taxon name is not current. The available references for this name are:
Scirpus validus Vahl is more recently known as Schoenoplectus validus (Vahl) Á.Löve & D.Löve
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A taxon name which is no longer current will retain its ‘Threatened’ status until publication of the next Wildlife Conservation (Rare Flora) Notice.