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Leaf Classification 5th Grade Living Systems Investigation 2 “Vascular Plants”

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Presentation on theme: "Leaf Classification 5th Grade Living Systems Investigation 2 “Vascular Plants”"— Presentation transcript:

1 Leaf Classification 5th Grade Living Systems Investigation 2 “Vascular Plants”

2 Classification Classify: scientists organize, or classify, things by putting them in groups based on similar properties or behaviors. Classify: scientists organize, or classify, things by putting them in groups based on similar properties or behaviors. Classification helps scientists think about concepts or efficiently. Classification helps scientists think about concepts or efficiently.

3 How Leaves Are Classified Classified by the basic pattern on veins Classified by the basic pattern on veins There are 3 patterns to help classify leaves: There are 3 patterns to help classify leaves: Palmate Palmate Pinnate Pinnate Parallel Parallel

4 Palmate Leaf Several veins extending from the place where the leaf stem attaches to the leaf. Several veins extending from the place where the leaf stem attaches to the leaf.

5 Pinnate Leaf Pinnate Leaf: One large vein extending the length of the leaf with smaller veins branching off. Pinnate Leaf: One large vein extending the length of the leaf with smaller veins branching off. Pinna means feather, so pinnate leaf resembles a feather. Pinna means feather, so pinnate leaf resembles a feather.

6 Parallel Leaf Parallel: Many small veins running the length of the leaf. Parallel: Many small veins running the length of the leaf. Long, narrow leaves, like blades of grass, tend to have parallel veins. Long, narrow leaves, like blades of grass, tend to have parallel veins.

7 Other Ways to Classify Leaves Leaf shape (blade) Leaf shape (blade) Kind of edge (margin) on the leaf Kind of edge (margin) on the leaf Kind of attachment to the stem (petiole) Kind of attachment to the stem (petiole) Venation: Palmate, pinnate, and parallel Venation: Palmate, pinnate, and parallel


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