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 tularense and hairy, toothed leaves. The flowers are greenish white and the fruits are yellow and bristly. Ribes tularense Ribes tularense is a rare species of currant known as the Sequoia gooseberry or Tulare gooseberry. It is endemic to southern California, at elevations between . "Ribes tularense" is known from only about ten populations in the forests of the High Sierra Nevada. These are located in Tulare County except for one population found less than 100 meters east of the county line near Mount Whitney in Inyo County. The species is closely related to "Ribes binominatum". "Ribes tularense" is a low,