Loganberry

The loganberry (Rubus × loganobaccus) is an hexaploid hybrid produced from pollination of a plant of the octaploid blackberry 'Aughinbaugh' (Rubus ursinus) by a diploid red raspberry (Rubus idaeus). The plant and the fruit resemble the blackberry more than the raspberry, but the fruit color is a dark red, rather than black as in blackberries. Loganberries are cultivated commercially and by gardeners.