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Forestry Envirothon B. A. Stump 2010. Leaf Shapes.

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Presentation on theme: "Forestry Envirothon B. A. Stump 2010. Leaf Shapes."— Presentation transcript:

1 Forestry Envirothon B. A. Stump 2010

2 Leaf Shapes

3 Scale Like

4 Broad & Flat

5 Needles

6 Leaf Arrangement

7 Alternate

8 Opposite

9 Whorled

10 Leaf Structure

11 Simple Leaf Petiole (Leaf Stalk) Bud

12 A Compound Leaf Leaflet Petiole (Leaf Stalk) Bud Pinnately Compound

13 A Compound Leaf Palmately Compound Leaflet Petiole (Leaf Stalk) Bud

14

15 (Alternate)

16 American Chestnut

17 (Alternate, rough on upper surface & soft-hairy below)

18 American Elm

19 (Alternate, short in-curved teeth)

20 Black Cherry

21 Black Cherry

22 (Alternate, finely toothed)

23 Black Willow

24 (Opposite, compound)

25 Box Elder

26 (Alternate)

27 Chestnut Oak

28 (Flat needles w/ small stalks)

29 Eastern Hemlock

30 (5 needles per cluster)

31 Eastern White Pine

32 (Alternate, double serrated)

33 Paper Birch

34 AL/Summer2003/Dawson_Dara/pawpaw.jpg Paw

35 (Alternate, compound, finely toothed leaflets)

36 Shagbark Hickory

37 (Opposite, has the largest fruit of native species of this tree in the state)

38 Silver Maple

39 (Alternate, rough leaves)

40 Slippery Elm

41 (Alternate)

42 Tulip Tree “T-shirt tree”

43 (Opposite, compound)

44 White Ash

45 (Alternate)

46 White Oak

47 Chestnut Oak White Oak

48 American Elm Slippery Elm

49 American Elm Paper Birch

50


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