Is the wild black currant invasive?
The raving mad black currant bush , also known as Ribes americanum , is indeed considered an invasive plant . As an alien species , it is not aboriginal to the region where it is found and can negatively touch on the local ecosystems . In particular , the black currant bush serves as an alternate host for the fungus Cronartium ribicola , which make clean pine blister rust fungus ( WPBR ) ....