一、巨型山楂“五大棱”于１９８８年发现于平邑县天宝镇。该品种果个巨大，平均单果重达２４．３克，最大果为３１．６克，果实长圆形，萼较膨大，萼洼周围有明显的五棱突起，宛如红星苹果。果皮全面鲜红，有光泽，果点小而稀，果肉黄白色，肉质细嫩，味甜微酸，不面不苦不涩 First, the giant hawthorn “five big edge” found in 1988 Pingyi County Tianbao town. The variety is a huge fruit, the average weight of 24.3 grams, the maximum fruit is 31.6 grams, fruit oblong, calyx more swollen, calyx depression around the obvious pentagonal protrusion, like Red Star apple. Peel full bright red, shiny, fruit small and thin, flesh yellowish white, delicate meat, sweet and sour, not no bitter is not astringent