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Identification Key
• A device (printed or computerized) to
  determine the identity of an unknown
  species.
• Dichotomous keys have two possible
  answers to each question.
• Multichotomous keys have many possible
  answers to each question
• Can use for trees, weeds, & aquatic life
Leaf Id
• Scales       • Needles
Broad Leaf
• Simple        • Compound
Lobes
• Palmate      • Pinnate
Compound
• Pinnate Compound   • Palmate Compound
Leaf arrangement
• Opposite           • Alternate
Margins
Compound leaves
• The leaf starts at the bud.
Try this leaf

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5 21 tree id