1	"Large plants with fronds mostly more than 1 m long"	2
1	"Small plants with fronds mostly less than 1 m long"	5
2	"Leaflets at the base of the frond not reduced to spines"	"Macrozamia riedlei"
2	"Leaflets at the base of the frond spine-like"	3
3	"Spines at the base of fronds rarely more than 10 cm from point of attachment"	"Macrozamia moorei"
3	"Spines at the base of frond at least 10 cm from point of stalk attachment"	4
4	"Leaflets shiny above, relatively thin, lowermost ones mostly less than 3 cm apart"	"Macrozamia miquelii"
4	"Leaflets dull above, relatively thick,  lowermost ones mostly more than 3 cm apart"	"Macrozamia communis"
5	"Frond not or hardly twisted; leaflets glossy, the lowermost ones shorter than the others but not spine-like"	"Macrozamia lucida"
5	"Frond strongly twisted; leaflets hardly glossy, lowermost ones spine-like"	"Macrozamia spiralis"