Botanical name    Guioa semiglauca

A common name   Guioa

Seedling
Young plant
Juvenile
Reasonably mature
Guioa semiglauca
In the photo the colour difference is very obvious but without the benefit of long exposures when you are walking along or weeding you must be ever vigilant for changes in texture and especially pattern.  It's actually dark enough in here for the privett not to get any bigger, they will just sit at this size untill the canopy is disturbed, whereas some of our rainforest species will still grow.  This little plant is getting to a very yummy size for our Swamp wallabies, it will get a cage very soon.
Guioa semiglauca
A little bit odd, all of our young Guioa are like this.  Dormant buds at the upper edge of side shoots, called axillary buds, are usually coming out of the joint.  You couldn't really call these axillary buds, anything up to a centimetre away from the axil.  This little tree is perhaps 3.5 metres tall.
Guioa semiglauca
Guioa seedlings start out with leaves the same size as seedling Small leaf privet, which is the weed you can see to the left of this seedling. 

Notice the only real difference is the tiny points on the leaves.  No this is not really just a seedling, it is a little more advanced.
Sassafras