1. Leaves
HortBotany

2. Leaf morphology Arrangement (look for bud) Alternate
1 leaf for each node
Betula spp., Cercis spp., Quercus spp., Gleditsia spp. Ulmus spp.

3. Leaf morphology
(arrangement)

4. Leaf morphology Arrangement (look for bud) Opposite
2 leaves for each node
Acer spp., Cornus spp., Fraxinus spp., Viburnum spp.

5. Leaf morphology
(arrangement)

6. Leaf morphology Arrangement (look for bud) Subopposite
2 leaves for each node
Lagerstroemia indica

7. Leaf morphology
(arrangement)

8. Leaf morphology Arrangement (look for bud) Whorled
3 or more leaves for each node
Catalpa spp., Hydrangea spp., Nerium oleander

9. Leaf morphology
(arrangement)

10. Leaf morphology Leaf types Angiosperm Simple
Bud in leaf axil of single leaf
Acer spp., Betula spp., Cornus spp., Quercus spp., Ulmus spp.

11. (angiosperm leaf types)
Leaf morphology
(angiosperm leaf types)

12. Leaf morphology Leaf types Angiosperm Compound
Bud in leaf axil of more than one leaflet
Aesculus spp., Fraxinus spp., Gleditsia spp., Pistacia spp.

13. (Angiosperm leaf types)
Leaf morphology
(Angiosperm leaf types)

14. (Angiosperm leaf types)
Leaf morphology
(Angiosperm leaf types)

15. (Angiosperm leaf types)
Leaf morphology
(Angiosperm leaf types)

16. (Angiosperm leaf types)
Leaf morphology
(Angiosperm leaf types)

17. Leaf morphology Leaf types Gymnosperm Needle-like Prickly to touch
Juniperus spp.(adult foliage)

18. (Gymnosperm leaf types)
Leaf morphology
(Gymnosperm leaf types)

19. Leaf morphology Leaf types Gymnosperm Scale-like
Overlaps like shingles or fish scales
Soft to touch
Cupressus spp., Thuja spp., Juniperus spp. (juvenile foliage)

20. (Gymnosperm leaf types)
Leaf morphology
(Gymnosperm leaf types)

21. Leaf morphology Leaf types Gymnosperm Needle-like Pinus spp.
Combined in fascicles of 1, 2, 3, 4, or 5 needles

22. (Gymnosperm leaf types)
Leaf morphology
(Gymnosperm leaf types)

23. Leaf morphology Leaf types Gymnosperm
Abies spp., Cedrus spp., Picea spp., Taxus spp.
Singly or in clusters on stem

24. Leaf morphology (Gymnosperm leaf types)
Spruce Foliage

25. Leaf morphology
Leaf shapes
Angiosperm
Ovate

26. Leaf morphology
Leaf shapes
Angiosperm
Obovate

27. Leaf morphology
Leaf shapes
Angiosperm
Cordate

28. Leaf morphology
Leaf shapes
Angiosperm
Lanceolate

29. Leaf morphology
Leaf shapes
Angiosperm
Linear

30. Leaf morphology
Leaf shapes
Angiosperm
Deltoid

31. Leaf morphology
Leaf margins
Angiosperm
Entire

32. Leaf morphology
Leaf margins
Angiosperm
Serrate

33. Leaf morphology
Leaf margins
Angiosperm
Sinuate

34. Leaf morphology
Leaf margins
Angiosperm
Lobed

35. Leaf morphology
Leaf margins
Angiosperm
Crenate

36. The End