Cyanea superba is a rare species of flowering plant in the bellflower family known by the common names Mt.

[2] This Hawaiian lobelioid was known from lowland forest habitat in the Waianae and Koʻolau Mountains of Oahu.

[4] This plant was driven to extinction by a number of forces, chiefly habitat destruction and degradation by feral pigs, rats, and introduced species of slugs.

[4] They faced competition from invasive plant species, including kukui (Aleurites moluccanus), silk oak (Grevillea robusta), and Christmas berry (Schinus terebinthifolius).

Some factors continue to threaten the individuals that have been planted in the habitat, such as fires started during military exercises and through arson.