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 viscosissimum Ribes viscosissimum Ribes viscosissimum is a North American species of currant known by the common name sticky currant. It is native to western Canada and the western United States from British Columbia and Alberta south as far as California, Arizona, and Colorado. "Ribes viscosissimum" grows in mountain forests, streambanks, and plateau sagebrush. It is a spreading to erect shrub growing one to two meters (40-80 inches) in height, its stem coated in sticky glandular hairs but lacking spines and bristles. It is resinous and fragrant. The highly glandular leaves have thick, rough blades divided into 3 rounded, toothed lobes, the