Mesembryanthemum introrsum Hook.f. in Bot. Mag.: t. 6057. 1873
Mesembryanthemum introrsum in Bot. Mag.: t. 6057. 1873
is basionym for Trichodiadema introrsum in Hartmann, Illustrated handbook of succulent plants. Aizoaceae FâââZ: 344. 2001
is basionym for Trichodiadema introrsum in Bradleya 15: 16. 1997