Cyanea calycina is a flowering plant in the Campanulaceae family. The IUCN has classified the species as critically endangered. It is native to the Hawaiian Islands. An example is being monitored with a plant cam.
It is a flowering perennial shrub from 1 to 3 meters tall.
Flowering plant species first discovered by Ludolf Karl Adelbert von Chamisso, and described by Lammers in The Leipzig catalogue of vascular plants, in 2020.