Melaleuca shiressii is a shrub or small tree growing to high with white or grey papery bark. Its leaves are arranged alternately and are long, wide, more or less flat, narrow elliptic or narrow egg-shaped and end in a sharp point. There is a mid-vein, marginal veins and 12–23 distinct lateral veins and there are many distinct oil glands. The edges of the leaves are often curled under and the lower surface is paler than the upper one. The flowers are cream or greenish-cream and are arranged in spikes at the end of, or around the branches which continue to grow after flowering. The spikes are in diameter and long with 5 to 25 individual flowers. The petals are long and fall off as the flower ages and there are 48-84 stamens in each flower. Flowering occurs from September to January and is followed by fruit which are woody
capsules, long and in diameter. ==Taxonomy and naming==