Jostaberry Jostaberry The jostaberry ("Ribes" × "nidigrolaria") is a complex-cross fruit bush in the genus "Ribes", involving three original species, the black currant "R. nigrum", the North American coastal black gooseberry "R. divaricatum", and the European gooseberry "R. uva-crispa". It is similar to "Ribes × culverwellii", the Jochelbeere, which is descended from just two of these species, "R. nigrum" and "R. uva-crispa". The cultivated plants are tetraploid. They are descended from two separate first-generation crosses, both of which produced very few fruit. Fertile tetraploids were produced using colchicine. The name "Jostaberry" was created via combining the German words for blackcurrant and
Ribes nevadense dully toothed lobes. The inflorescence is a dense raceme of up to 20 flowers hanging pendent or held erect on the branches. Each flower has opens into a corolla-like array of five pinkish red sepals with five smaller white petals in a tube at the center. The fruit is an edible blue-black berry under a centimeter wide. It is somewhat waxy in texture and studded with glandular hairs. Ribes nevadense Ribes nevadense (sometimes spelled "R. nevadaense") is a species of currant known by the common names Sierra currant and mountain pink currant. "Ribes nevadense" is native to several of the