Definitions

1. adjective

resembling or characteristic of the arum plant; especially : having or resembling a spathe (a sheathing bract that often resembles a petal or a leaf)

“The arumlike foliage of the plant made it easy to confuse with a poisonous species.”

2. noun

a plant resembling the arum in appearance

“The park ranger warned us about the arumlike plants that grew in the area.”