Micromyrtus minutiflora

A slender spreading shrub to 2.5 metres high, often with a narrow spread to 1 metre, with a few to many narrow and arching stems, and possibly growing by suckering. 

It has a very small natural distribution, growing in western Sydney, restricted to the general area between Richmond, Penrith and Riverstone in western Sydney.

It grows in well-known endangered ecological communities in western Sydney, namely Cooks River Castlereagh Ironbark Forest, Castlereagh Scribbly Gum Woodland, Shale/Gravel Transition Forest and modified areas of these communities, on tertiary alluvium and consolidated river sediments. 

It is a listed threatened species in the wild. 

Micromyrtus spp. trend to have small, simple and opposite leaves, often decussate (where the projection of each pair of leaves is at a 90-degree turn to the last and next pair); less than 1 cm long and very narrow and also somewhat bent upwards from the middle. In this species, leaves are oblong to ovate, to 4 mm long and 1 mm wide with hairy margins; produced in the decussate arrangement; aromatic with oil glands (seen under a microscope).

Micromytus spp. have very small flowers – cup shaped and rotate, with 5 to 6 petals and with very small sepals. They are usually produced solitary or in 3-flowered clusters, in leaf axils. Yet, the number of flowers is very large. In this species, flowers are produced singularly in leaf axils, sometimes forming small clusters, white in colour with petals about 1 mm long; can be produced profusely. 

The fruit is solitary nut which can hold seeds for a lengthy period past maturity, to about 3 mm long.