1	"Leaves opposite in unequal lateral and facial pairs on flattened sprays (these may look similar, but on flattened branchlets the lateral pairs are flattened and therefore strongly ridged on the back)"	"Cupressaceae - Group 1"
1	"Leaves spirally arranged, or in alternating opposite identical pairs, or  in 3s; sprays not flattened"	2
2	"Leaves arranged around the stem in 3s"	"Cupressaceae - Group 2"
2	"Leaves spirally arranged or in opposite identical pairs"	"Cupressaceae - Group 3"