 "Macrozamia montana" is part of the genus "Macrozamia" but is isolated from the rest of the genus.It is more closely related to larger "M. communis" plants in New South Wales, Australia than the smaller "M. communis" plants on the north of Newcastle.The petioles of the M. communis however, grow to about 10–40 cm long which is far longer than those of the "M. montana".