Land Plants - invasive

Italian Arum (Arum italicum) on May 19, 2024

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

Description of specimen

Small cluster of italian arum with white flower

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

I saw a cluster of Italian Arum this past weekend on the Water Board Park Hiking Trail from WaterBoard Rd up to Promontory drive on the North side of the trail. Currently flowering. Rough latitude / longitude is 45.349594, -122.611332

Expert Reviewer

Samuel Leininger
Clackamas Soil and Water Conservation District
4-County Cooperative Weed Management Area
Columbia Gorge Cooperative Weed Management Area

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