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Tree Identification Basics

Tree Identification Basics. Broad Classification Scheme. Annual, Biennial, or Perennial?. Marigold – Tagetes erecta. Marigold is an annual plant. Biennial. A species that completes it’s life cycle in 2 growing seasons. White Oak – Quercus alba. An oak tree is a perennial plant.

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Tree Identification Basics

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  1. Tree Identification Basics

  2. Broad Classification Scheme

  3. Annual, Biennial, or Perennial?

  4. Marigold – Tageteserecta • Marigold is an annual plant.

  5. Biennial • A species that completes it’s life cycle in 2 growing seasons.

  6. White Oak – Quercus alba • An oak tree is a perennial plant.

  7. Herbaceous or Woody?

  8. Daylily - Hemerocallis • A daylily is an example of a herbaceous, perennial plant.

  9. Burning Bush – Euonymus alatus • Burning Bush is an example of a woody, perennial plant.

  10. Deciduous, coniferous evergreen or broad-leaf evergreen?

  11. Sugar Maple – Acer saccharum • Sugar Maple is a deciduous, woody perennial plant.

  12. Norway Spruce – Piceaabies • Norway Spruce is a coniferous evergreen, perennial plant.

  13. Holly - Ilex • Holly is a broad-leaf evergreen, perennial plant. Ilex meserveae 'Blue Angel'

  14. Deciduous Conifers? – Yep! Eastern larch Bald cypress

  15. Leaf Morphology

  16. Leaf Shapes

  17. Leaf Margins

  18. Leaf Types

  19. Basic Leaf Types • Simple • Compound • Pinnately compound • Bipinnately compound • Palmately compound • Scale-like • Needle-like

  20. Simple Leaf

  21. Pinnately Compound Leaf

  22. Bipinnately Compound Leaf

  23. Palmately Compound

  24. Scale-like Leaves

  25. Needle-like Leaves

  26. Leaf Arrangement

  27. Alternate

  28. Opposite

  29. Whorled Oleander

  30. Time to test your skills…

  31. Leaf type? • Leaf shape? • Leaf margin? • Leaf arrangement?

  32. Leaf type? • Leaf shape? • Leaf margin? • Leaf arrangement?

  33. Leaf type? • Leaf shape? • Leaf margin? • Leaf arrangement?

  34. Leaf type? • Leaf shape? • Leaf margin? • Leaf arrangement?

  35. Leaf type? • Leaf shape? • Leaf margin? • Leaf arrangement?

  36. Buds

  37. 3 Basic Bud Types • Vegetative • Flower • Mixed

  38. Flowering Dogwood – Cornusflorida Flower bud Vegetative bud

  39. Pagoda Dogwood – Cornusalternifolia Mixed bud

  40. Buds with scales vs. naked buds Paper birch Wayfarringtreeviburnum

  41. WARNING! • I would advise against doing a Google image search using the key words “naked buds”.

  42. Stem Morphology

  43. Terminal Bud

  44. Terminal Bud Bitternut hickory Common lilac

  45. Lateral • Buds

  46. Lateral Buds Basswood

  47. Leaf Scars

  48. Leaf Scars Black walnut Northern catalpa Green ash

  49. Vascular Bundle Scars

  50. Vascular Bundle Scars Ohio buckeye

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