@epsi Well its the english name thats weird calling it blueberry. In German they are Heidelbeeren. Though german has that as well with for rotkraut (red cabbage) and blaukraut (blue cabbage)
its like that meme where they want you to find the difference (THEY ARE THE SAME).
Though Blaukraut is just a regional word-variant for rotkraut. Though depending on the one you get it can have either blue or red juice.