sweet chestnut unripe fruits. extremadura, spain

acena agriculture alcantara autumn beautiful boldly borrega branching caceres castanea chestnut cultivated cultivation cupules deciduous early edible emerge extremadura fagaceae farm farming food freshness fria fruits green group healthy hillside immature leaves longlived mediterranean mountain natural nature oblonglanceolate organic plant range sativa scenery season seeds sheath sierra sleaves spain spanish spiky spiny summer sweet toothed travel tree unripe valencia