Family: Asteraceae (Daisy family).
Native of North America.
Occurrence: A widespread and common wetland weed e.g. along creeks, near reservoirs, and in seasonally wet areas. It is occasionally found on pasture land.
Identification:
Name: Aster: from the Greek aster: a star.
It is an environmental weed.
Photos:
1: Aster Weed. Barkers Creek Reservoir.
Below 2: Aster Weed. Tullaroop Reservoir.
3: Dense growth of Aster Weed on the dry bed of Cairn Curran Reservoir.