Regarded as the king of all black truffles.
The black rare truffle season starts in November and stretches till March. Also known by the name of Norcia or Spoleto, In France it is known as the ‘Perigord’ truffle. In Italy it is mainly found in Umbria, Abruzzo, Marche, Tuscany and Lazio.
The gleba (flesh) is dark brown/black colour with white veins.