1	"Tree, leaves >= 25 mm, blade shiny adaxially"	"Ziziphus zizyphus"
1	"Shrub; leaves <= 25 mm, blade not shiny adaxially"	2
2	"Fruit 7&ndash;10 mm, blue-black, not beaked"	"Ziziphus obtusifolia var. canescens"
2	"Fruit 10&ndash;25 mm, brown, beaked"	"Ziziphus parryi var. parryi"