Kangaroo thorn (Acacia paradoxa ) is regarded as an environmental weed in Tasmania and Western Australia. It is sometimes regarded as being weedy within its native range, particularly when growing in native pastures, but has also become naturalised outside its native range or in habitats beyond its normal ecological range. For this reason it is sometimes also regarded as an environmental weed in the ACT and Victoria.

An important habitat plant for birds and small mammals. Attractive to a variety of birds and insects.