It is similar to subspecies bakeri, differing in its smaller habit, thick leaves and slightly larger fruit.

crassifolia is a small, shrubby tree or mallee that typically grows to a height of 10 m (33 ft) and forms a lignotuber.

bakeri in its smaller habit, thicker, less flexible leaves and slightly larger fruit.

The original specimens were collected by Leach near Mona Vale Road, Terrey Hills in 1975.

[4] Subspecies crassifolia grows in sandy soil over sandstone north from near Middle Harbour to Ku-ring-gai Chase National Park.