This name in the strict sense refers to Etlingera elatior (POWO, http://legacy.tropicos.org/Name/50182640?tab=acceptednames), but the illegitimate later homonym is considered a synonym of Alpinia zerumbet (http://legacy.tropicos.org/Name/34500131?tab=acceptednames). This includes Alpinia speciosa 'Variegata' which is the primary usage on this site.