Wilkesia
Wilkesia is a genus of Hawaiian plants in the tribe Madieae within the family Asteraceae. It contains two perennials, both of which are endemic to the island of Kauai in Hawaii. Wilkesia is a component of the silversword alliance and is named after Captain Charles Wilkes.
;SpeciesWilkesia gymnoxiphium A.Gray, 1852Wilkesia hobdyi H.St.John, 1971
;formerly included
''Wilkesia grayana - Argyroxiphium grayanum''