The species is monoecious and forms imperfect flowers. Both male and female flowers are found on the current year's growth. The male flowers are long-stalked catkins, developing at the shoot base. The female flowers are in short spikes on peduncles at the end of the shoot. Flowering occurs from April to May, shortly after the leaves have started to open. Specifies of pollen production, dissemination and pollination are not known. The sweet, edible nut matures from September to October of the same year and falls between September and December. Its ellipsoidal shell is thick and hard.