[1] The inflorescence of C. calliantha comes from a tall erect stem, growing up to 50 cm (20 in) long,[1] and emerged from the center of the basal leaves.

The capsules start off yellow-green and once mature turn a brown colour, splitting along the seams to release the seeds.

[1] C. calliantha is primarily found in grassy woodland vegetation types, in Tasmania this can be seen as its distributed across the midlands.

It also has an ability to thrive in an array of ecological settings including heathlands and open forests, growing from sea level to sub-alpine altitudes.

Caesia parvifolia is the most visually similar to C. calliantha, both with the same habitats, grass-like structures and star shaped blue flowers.