This taxon name is not current. The available references for this name are:
Cardaria Desv. is more recently known as Lepidium L.
Reason: See D.J. Mabberley in Mabberleys Plant Book Ed.3:151(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A taxon name which is no longer current will retain its ‘Threatened’ status until publication of the next Threatened Flora - Rare Flora Notice.