Casuarina L. >
Bracteoles of cone thinly woody and without a dorsal protuberance; extending well beyond the cone body giving the cone a "spiky" appearance even before opening. Mature nut grey or yellowish brown, dull, not glossy. Teeth on the branchlets in whorls of 8–20 Casuarina
Teeth on branchlets 8–10 in each whorl. Branchlets 0.4–4.6 mm diam. Cones globular, mostly c. 8 mm diam. Small or large trees. Banks of fresh water streams. River Oak Casuarina cunninghamianacunninghamiana