I am developing a whole new appreciation for weeds. Some are really pretty when you get up close. (And they are cheap!) This plant is about 4 - 5 cm high,
https://www.google.com.au/search?q=nsw+weeds+au&hl=en&rlz=1Q1GGLD_enAU499AU499&source=lnms&tbm=isch&sa=X&ved=0CAcQ_AUoAWoVChMImIzyoPTwxwIVZRmmCh1XAg-V&biw=1135&bih=664#imgrc=kx8Gs8vAiinVRM%3A yeswaitnosorry, This might help you I am guessing an Onion weed. Keith
http://www.huntercentralcoastweeds.com.au/index.php/weed-officer-contact yeswaitnosorry They should be able to help or direct you who to contact. Keith