Origin: in Spencer County, Ind., by Albert B. Cook, Grandview, Ind. Introd. in 1976 by Herschel L. Boll, Champaign, Ill. Parentage unknown; discovered about 1914 in woods. Berry: medium to large, oblong; skin pink, translucent; flesh slightly soft; apparently must be pollinated by a black blackberry; ripens about with Darrow. Tree: low to medium in productivity, occasionally producing very large clusters of fruit; vigorous, grows up to 7 ft in height; canes erect; produces medium number of suckers, slightly more than Darrow. Fruit: