Casuarina obesa

The cones of C. obesa tend to be less broad than those of C. pauper, and the valves are generally less pointed and thinner, but such distinctions are not always clear in Victorian material. Plants with viral or fungal infections may be grossly distorted: e.g. material has been observed with branchlets to 2 mm diam., teeth numbering more than 20, and fruits to 30 mm long and 19 mm diam.

Populations of C. obesa from Karadoc Swamp seldom produce cones, and the trees are apparently suffering from the increased salinity of water entering the swamp.