Allocasuarina thalassoscopica L.A.S.Johnson

Dioecious spreading shrub 0.5-1.5 m high. Bark smooth. Branchlets ascending, to 12 cm long; articles 4-8 mm long, 0.5-0.9 mm diam., smooth, pubescent in furrows; phyllichnia angular to rounded; teeth 6 or 7, erect to slightly spreading, not overlapping, 0.3-0.7 mm long, not marcescent. Male spikes 1-3 cm long, 8.5-9.5 whorls per cm; bracteoles persistent; anther 0.8-0.9 mm long. Cones cylindrical, occasionally irregular and with a sterile apex to c. 5 mm long; peduncle 3-13 mm long, slender; cone body 12-28 mm long, 6-15 mm diam.; bracteoles broadly acute to obtuse, pyramidal protuberance shorter than bracteole body and diverging from it low down. Samara 4.5-7.5 mm long, dark brown to black.

Grows in low heath in acid volcanic soil and in nearby wallum areas.