I've found two very different varieties of berries growing in my local woods and was looking for some help with identification. In simplest terms one tastes delicious--juicy and sweet and only mildly seedy. The other is awful--no matter how ripe the fruit it's so horribly sour and seedy and has an odd metallic aftertaste. The good ones grow on erect canes of a light green color, are maybe four feet high and have only small thorns. The bad ones grow on long arching canes of a tan-gray color and I'd estimate are six to eight feet long with thorns probably half an inch in size. Thanks for any help !