The Khroumire has extensive forests of cork oak. Cork is obtained from the bark of the cork oak. Natural stands of cork oak can support diverse ecosystems. Cork flooring is a flooring material manufactured from the by-product of the cork oak tree. Cork oak plantations were trialled but proved unsuccessful. In the case of the cork oak it will yield harvestable cork. Many orchards as well as cork oak woodlands were damaged. Cork is produced from the thick bark of the cork oak ("Quercus suber"). The fungus "Biscogniauxia mediterranea" is becoming more common in cork oak forests. The bark of the cork oak is used to produce wine stoppers (corks). Namely oak, cork oak and pine wood. In the Iberian peninsula it nests in pine and cork oak ("Quercus suber"). Cork oak forests cover approximately 25,000 square kilometres in those countries (equivalent to ). The cork oak ("Quercus suber") is a key host. The cork oak groves of Los Alcornocales are situated in a strategic place.