Land Plants - invasive

Italian Arum (Arum italicum) on Mar 19, 2026

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

Description of specimen

See photo attached of the clump of arum at the base of a large spruce tree.

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

THPRD, Schiffler Park, Beaverton, Oregon
Coordinates from Google: 45.480333, -122.812250

One other specimen was seen on the fence line at: 45.479111, -122.812972

Expert Reviewer

Avatar of Reviewer

Coleman Hepner
Tualatin SWCD

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