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 americanum sedge meadows ("Carex" spp.). It grows on plains and in mountains and sometimes in disturbed areas such as roadsides. It is shade-tolerant, growing in the understory of closed-canopy woodlands and forests. 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. The fruit of this plant is known for being made into jam and jelly. It has also been introduced to northern China. Ribes americanum Ribes americanum is a North American species of flowering plant in the gooseberry family