Most species are endemic to Australia, but some species grow in New Zealand,Malaysia. A shrub or small tree, early settlers soaked the leaves in boiling water to make a brewed tea rich in ascorbic acid (vit C).
Let's have hanging plants partially covering retaining walls. Also, use for upstairs balcony wall. Casuarina Glauca "Cousin It" Cousin It is a groundcover form of the tough, hardy Australian native sheoak.