[4][5][6] White flowers with purple spots appear in the leaf axils in clusters of three to eight and are 6–8 mm (0.24–0.31 in) in diameter.

Flowering is followed by the fruit which is a smooth, rounded purple to black drupe 4.5–9 mm (0.18–0.35 in) in diameter.

[4][5][6][7] Myoporum insulare was first formally described by botanist Robert Brown in Prodromus Florae Novae Hollandiae in 1810.

[4] In New South Wales it occurs from Eden southward, although an isolated occurrence was recorded much further north on Brush Island.

[14] Myoporum insulare may be used as a fast-growing hedge or windbreak species which withstands coastal winds and drought.