Origin: in Merton Park, London, England, by M.B. Crane, John Innes Inst. Introd. in England in 1936, introd. in the U.S. in 1944. Plant patent 571; 9 Mar. 1943; assigned to Armstrong Nurseries, Ontario, Calif. John Innes (Rubus ulmifolius inermis × R. thyrsiger) × a thornless selfed John Innes seedling. Tree: thornless; vigorous grower; crop production in U.S. has not been very high; tetraploid. Useful in breeding thornless plants. No longer propagated for its fruit. Fruit: large; round; drupelets large; long midseason ripening.
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