A semi-erect, productive, thornless blackberry that resembles a wild blackberry. Origin: in Washington, Ind., by Thomas E. Doyle. USPP 4094; 23 Aug. 1977. Unknown parentage; discovered in Mr. Doyle’s berry patch in 1970; introd. in 1977. Tree: thornless, semi-erect; very large canes 2.5 to 3.8 cm diameter that produce long, trailing laterals; very productive yielding 38 to 76 L/plant of fruit; disease resistant; has withstood temperatures of –20.5 °C. Fruit: round; length of 1.9 to 2.9 cm; borne on clusters of 20 to 100 berries; fluorescent blue-black appearance; ripens over an extended period (60 days); taste similar to that of wild blackberries; maintains firmness several days following harvest.
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