Campylostachys

Campylostachys is a genus of flowering plants in the family Stilbaceae described as a genus in 1832.
There is only one known species, Campylostachys cernua, endemic to the Cape Province region of South Africa.
now in "Euthystachys Kogelbergia" 
In 1843, Meyer used the same name to refer to some plants in the Cyperaceae, thus creating an illegitimate homonym. Meyer's genus name and the species name he created in the genus are invalid as well as illegitimate, as they were published without descriptions.