true Chestnut Castanea sativa edible Sweet Chestnut poisonous horse chestnuts Edible chestnuts vs. Horse chestnuts to be eaten true Chestnut Castanea sativa edible chestnuts horse chestnuts, sometimes called buckeyes, This site edible Sweet Chestnut not Edible chestnuts vs. Horse chestnuts Horse chestnuts (Buckeyes) are not edible chestnuts