Origin: in Bakersfield, Calif., by John Weinberger and Timothy Sheehan, Superior Farming Co. Introd. in 1987 as Sugrasix. Plant patent 6009; 8 Sept. 1987; assigned to Superior Farming Co. Ribier × Superior Seedless; tested as 20-5. Berry: size variable; skin purplish-black; seedless, with medium-size vestigial seed traces; ovate; flesh greenish, translucent, juicy, firm; most nearly resembles Ribier; ripens about with Flame Seedless. Cluster: medium; double-shouldered, tapering; good berry attachment. Tree: Fruit: