Native primarily to Australia; Casuarina equisetifolia is also a Pacific Island native. Long, thin, jointed, green branches look like long pine needles; true leaves are inconspicuous. Tolerate many tough conditions: dry or wet soil, salinity, heat, wind. Hardy to 15°F/–9°C. Particularly useful in desert areas, where they are often confused with Athel tamarisk (Tamarix aphylla) because of similar foliage—but the casuarinas have conelike fruit. Cones range from 1/4 to 1 in. long in species described here; those of Casuarina stricta are largest. Little pruning required.Casuarina cunninghamiana
Largest species. To 70 ft. tall, 30 ft.wide. Finest texture, with dark green branches.
Fast grower to 40–60 ft. tall, 20 ft. wide. Has pendulous gray-green branches.
Trees grow 25—30 ft. tall with large, glossy green leaves and large (5-in.), sweet-tart, yellow ...
From South Africa. This is a somewhat taller (up to 3 ft.), larger version of D. iridioides a...
Fast growing to 50 to 60 ft. (rarely 100 ft.) tall. Young trees are symmetrical and pyramidal. Old one...