Acanthus spinosissimus Pers., Syn. Pl. 2: 179. 1806 Acanthus spinosissimus Pers., Syn. Pl. 2: 179. 1806is basionym for Acanthus spinosus subsp. spinosissimus (Pers.) Zangh., Fl. Ital. 1: 626. 1976Taxon for this nameAcanthus spinosissimus Pers., Syn. Pl. 2: 179. 1806