Mesembryanthemum uncum var. gydouwense L.Bolus, Notes Mesembryanthemum 3: 55. 1937
Mesembryanthemum uncum var. gydouwense, Notes Mesembryanthemum 3: 55. 1937
is basionym for Phiambolia gydouwensis in Bradleya 23: 102. 2005
is basionym for Lampranthus uncus var. gydouwense in Natl. Cact. Succ. J. 4: 58. 1949