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 marshallii Ribes marshallii Ribes marshallii is a North American species of currant known by the common names Hupa gooseberry and Marshall's gooseberry. It is endemic to the Klamath Mountains of southern Oregon and northern California. "Ribes marshallii" grows in mountain coniferous forests. It is a shrub producing arching stems 1 to 2 meters (40-80 inches) long which may root at the tip when it reaches moist substrate. Nodes on the stem bear three spines each up to a centimeter (0.4 inch) long. The lightly hairy leaves are roughly three centimeters (1.2 inches) long and are divided into a few widely toothed