1. Leaves

2. The leaf is a part of the plant that is charge of making food for the plant.
99% of the photosynthesis is done here.
Leaves can be used to identify trees by looking at the leaf’s characteristics.

3. Types of Leaves?
Leaves can either be broad and flat or scalelike/needlelike

4. Types of Broad Leaves
Broad leaves are either simple or compound

5. Shapes of Simple Leaves

6. Shapes of Compound Leaves

7. Parts of the Leaves
Petiole - a thin stalk that connects the blade of the leaf to the plant's stem.
Blade - a thin, flat part of the leaf that extends off the end of the petiole.
Veins - contain vascular tissue and transport food, water, and minerals
Lobe - rounded or pointed section of a leaf
Margin – the border or edge of a leaf; there are many different types
Base – the bottom part of the leaf
Leaflet – one of the small leaves on a compound leaf

8. Leaf Information
lobe
Simple leaf
Compound leaf

9. Leaf Arrangement on Stem

10. Simple Leaves - Margin Structure

11. Leaf Venation
How veins are arranged on the leaf

12. Basic Leaf Base Shapes
V-Shaped
Rounded
Flat
Heart Shaped
Uneven

13. Show What You Learned
Simple or Compound?
Simple

14. Show What You Learned
Leaf venation?
Palmate

15. Show What You Learned
Leaf margin?
Lobed

16. Show What You Learned
Leaf arrangement on stem?
Opposite

17. Leaf Parts