https://www.portland.gov/bes/invasive-plants/italian-arum
Invasive Plant: Italian Arum | Portland.gov
Italian arum, a British native, is another commonly swapped species with a reputation for being extremely difficult to remove.
invasive plantitalian arumportland
https://www.rhs.org.uk/plants/112949/arum-italicum-subsp-italicum-cyclops/details
Arum italicum subsp. italicum 'Cyclops' | Italian arum 'Cyclops' /RHS
arum italicumsubspcyclopsitalianrhs