Land Plants - invasive

Italian Arum (Arum italicum) on Jul 8, 2024

Submitter does not have a specimen
EDRR Status: Local expert notified

Description of specimen

Alien-looking green corncobs. The nodules look like green garbanzo beans. There is a large one and two babies by its base.

Commentary

None

Remedy

Italian arum can be difficult to eradicate once established. Make sure to wear gloves and long sleeves and pants when removing it, as its sap can cause skin irritation. Do not compost or put in your yard debris, as this can lead to spreading of tubers which can grow into new plants. Home control methods can include carefully digging out the tuber and any daughter tubers and disposing in the trash. Cutting and disposing of the berries in the trash can help prevent spreading to new sites. Herbicide trials are still inconclusive, please contact your local Soil and Water Conservation District if you are interested in chemical control.

Resources

Washington State Noxious Weed Board info on Italian Arum

Location

There is a tree on the left side of the driveway into the communal parking lot. The plant by its base, facing the sidewalk of SW 13TH ST.

Expert Reviewer

Michael Ahr
Benton Soil and Water Conservation District

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