A groove of Acacia decurrens of different ages and sizes from 2-3 m to 5m; most likely recruits from some of the huge old A decurrens that occur in this area; for id see https://canberra.naturemapr.org/sightings/4581447.
cut and paint or frilled and mapped with Field Maps Treated Weeds 2024/25
thanks for confirmation Steve818; it seems that the A. decurrens species runs under the radar of Parks as well as parkcare groups, perhaps because it is considered a lesser risk then for instance Cootamundra wattle or because it is harder to identify...