Members of the Casuarinaceae are valued and protected trees in their native range as they have Australian national biodiversity, cultural, and evolutionary significance (Boland et al., 1984).

Are she Oaks protected?

River Sheoak is mostly seen growing in dense stands along watercourses in New South Wales where it is a protected species. ... It is the tallest of the Casuarinas, with excellent form and light branching making pruning very easy – even fun. It is an ideal species for use along water courses for soil conservation.

Can you prune Casuarina?

Pruning is not generally required for plant health or vigour but can be conducted for aesthetic reasons.