According to the query of Baidu Encyclopedia, blackcurrant, also known as blackcurrant, is a deciduous erect shrub of the genus Cassis in the family Cassicaceae. Branchlets glabrous, young branches pilose, yellow glandular, buds pilose and yellow glandular; leaves suborbicular, base cordate, pilose and yellow glandular below, lobes broadly triangular; floral bracts lanceolate or ovate-orbicular, calyx pale yellowish-green or pale pink, calyx tube subcampanulate, sepals ligulate, petals ovate-orbicular or ovate-elliptic; fruit suborbicular, black when ripe.

Grape (Vitis vinifera L.) Vitis vinifera L. is a tall twining vine, with young stems that are bald or slightly woolly; the leaf blades are papery, rounded-ovate or rounded; the inflorescences are large and long; the calyx is very small, yellowish-green and cup-shaped; the styles are very short, conical; the berries are ovoid to ovate-oblong, and are purple-black or reddish-greenish when ripe; the flowering season is June; the fruiting season is September-October. Fruiting period: September-October. Li Shizhen in the "Compendium of Materia Medica" said: grapes, "Han Shu" as Puchao, can be made wine, people feed drink, then drunk, so there is the name.

Blueberry is a deciduous shrub of Rhododendron, Bilberry, with green, angular or terete branchlets, usually with rows of pilose hairs; the leaf blade is subleathery, ovate to elliptic, acute at the apex, cherry-shaped to subrounded at the base, the margins serrate to entire, dark green, glabrous above and hairy below; the racemes are borne in last year's branches, with green flowers, glabrous; the corolla is white to pink, subcylindrical; Filaments usually pilose. Berries globose, dark blue, glabrous, white powdered; flowering June to July; fruiting August to September. The name blueberry comes from the direct translation of the English "blueberry", meaning blue berry.

Based on the above information, we can see that blackcurrant is not the same species as grape and blueberry, but just looks similar.

Blackcurrants are not the same as grapes or blueberries.