Environmental weed in Victoria.
http://keyserver.lucidcentral.org/weeds/data/media/Html/polycarpon_tetraphyllum.htm
Polycarpon tetraphyllum is listed in the following regions:
Canberra & Southern Tablelands | Albury, Wodonga | South Coast | Hume | South East South Australia
Maps
Albury Aranda Bushland Ben Boyd National Park Biamanga National Park Blue Gum Point to Attunga Bay Bruce Ridge to Gossan Hill City Renewal Authority Area Coornartha Nature Reserve Dryandra St Woodland Eurobodalla National Park Flea Bog Flat, Bruce Gigerline Nature Reserve Goulburn Mulwaree Council Goulburn Wetlands Gulaga National Park Haig Park Higgins Woodland Lake Burley Griffin West Lyneham Wetland Mimosa Rocks National Park Mount Ainslie MTR591 at Gundaroo Pambula Stirling Park Sullivans Creek, Lyneham South Sullivans Creek, Turner The PinnacleSurvey points
GG105Places
Goulburn, NSW