Zieria granulata

A shrub growing to 3 metres typically, (potentially reaching 6 metres). It is strongly aromatic.

It has a highly restricted natural occurrence, growing only in the Illawarra region of NSW, where it occupies several sites; from just north of Dapto to around Broughton Vale and Toolijooa.

It is a listed threatened species.

It grows in dry sclerophyll forest and rainforest margins on rocky soils.

Branches are densely covered with warty protuberances with young branchlets covered in hairs.

Zieria spp. have leaves arranged in opposite pairs, compound with three leaflets (tri-foliolate) or one leaflet (uni-foliolate). When trifoliolate, the leaflets are often similar in shape with the middle leaflet often larger, and with leaves usually strongly odorous, green to grey-green.
In this species leaves, leaves are tri-foliolate, with linear leaflets, up to 40 mm long and only about 1 mm wide, with toothed edges and with warty protuberances on both surfaces; upper surface dark to dull green and lower surface white due to stellate hairs, strongly aromatic.

Zieria spp. have flowers arranged in groups (cymose clusters) in the leaf axils and have four sepals joined at the base and four petals, alternating with the sepals. There are four stamens and four fused carpels. In this species, the flowers are white and are arranged in many-flowered clusters of in leaf axils, each flower to 7 mm in diameter, occurring during spring and summer.

Zieria have a fruit described as a schizocarp-capsule which splits into segments called cocci (singular coccus). Fruit generally have four cocci, each containing one or two seeds. In this species, the cocci contain reddish seeds about 2 mm long that have an oil body attached (elaisome) for attracting ants.