Previous Steps

• 1a – Opposite leaf arrangement on stem — go to 2
  • 2a – Leaf compound — go to 14
    • 14a – Leaves are pinnately compound — go to 15
      • 15b – Leaflets are uniform in shape; margins are entire or slightly serrated.  Leaf scars do no meet across the stem — go to 16

Current Step

• 16a – Bud sits on top of leaf scar. Leaflet margins toothed, especially above the middle — Green Ash

• 16b – Bud sits inside the leaf scar. Leaflet margins entire except for a few faint rounded teeth — White Ash

Resources

• Identifying Broadleaf Flowering Trees and Shrubs, CMG GardenNotes #173
• List of trees in this key
• Glossary of Terms
• Front Range Tree Recommendation List
• Online CSU Extension publications on Tree and Shrub Selection