This lily is uncommon along the Jan Juc cliff tops but a few small dense colonies persist in sites close to the walking track. To date it has not been fully described (hence the abbreviated species in the name- shown as sp.).
Coastal Flax-lily is a perennial characterised by rhizomes that have shortened inter-nodes that spread out creating a dense, leafy affect. The leaves are generally softly arching with the upper side a darker green in colour.
Long flower stems grow above the foliage in spring producing striking blue flowers with bright yellow male filaments. Following flower pollination, many showy, bright violet/purple berries upto 13mm in length remain on the plant for some time.
This species is similar to Dianella admixta (Black-anther Flax-lily). It differs by growing taller and by having larger flowers and fruit. The leaves also tend to be greener than D. admixta (which typically have a bluish tinge). Finally, D.sp.aff. revoluta (Coastal) is confined to the coast on well-drained soil whereas D. admixta is also found inland.

Indigenous uses as provided by the Wathaurung Aboriginal Corporation: Dianella leaves are used for making string and baskets. The fruits and pith at the base of the leaves of D. revoluta are edible.