Chenopodium oahuense is a species of flowering plant in the amaranth family known by the common names aweoweo, alaweo, alaweo huna, aheahea, ahea, ahewahewa, and kahaihai.

[2] It is endemic to Hawaii, where it occurs on all of the larger islands except for Kahoolawe.

Sooty terns and red-footed boobies use this plant as nesting material.

The Hawaiian people use the wood of this plant to make shark hooks, and the cooked leaves are eaten like (related) spinach.

In addition with other native herbs it was mixed for weight gain in children.