Land Plants - invasive

Italian Arum (Arum italicum) on Jan 12, 2026

Submitter has sample
EDRR Status: Local expert notified

Description of specimen

Italian Arum, Blackberries, Lesser Celandine

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

My small property is across the street from the Tualatin river. It backs up and next to untended lands. I’m bring over run by Italian Arum, Lesser Celandine and blackberries. Please send help.

Expert Reviewer

Avatar of Reviewer

Coleman Hepner
Tualatin SWCD

Maintained by Oregon State University | Contact us for questions regarding site content