sentences:  Two subspecies are recognised, the widespread nominate, and subspecies "glabra" which is found from Bulahdelah north to Kempsey and has smooth leaf undersurfaces.In a suitable location, the turpentine grows into a large straight-trunked tree up to 45 or even 55 m (150–180 ft) high with a DBH of up to 1.3 or even 1.5 m (4–5 ft).On poorer soils it grows as a small tree or even adopts a mallee habit.