Mesembryanthemum vigilans L.Bolus in J. Linn. Soc., Bot. 45: 121. 1920
Mesembryanthemum vigilans in J. Linn. Soc., Bot. 45: 121. 1920
is basionym for Nycteranthus vigilans, Handb. Succ. Pl. 3: 1326. 1960
is basionym for Sphalmanthus vigilans in Jacobsen, Sukkulent. Lex.: 515. 1970