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 oxyacanthoides found in mountain talus. This plant is an alternate host for the white pine blister rust ("Cronartium ribicola"), the vector of a pine tree disease. It is sometimes eradicated in attempts to control the rust. Small amounts of this shrub and its fruit are present in the diets of wildlife species such as grizzly bear and mule deer. Humans find it "more or less palatable". Many Native American groups collected and stored it for food. The Ojibwa cooked and ate it with sweet corn and made it into preserves, for example. The root was used medicinally. Ribes oxyacanthoides Ribes oxyacanthoides