Colorado State University

Extension

Contact your local county Extension office through our County Office List.

Online Directory

Call Us

Key to Identifying Common Colorado Landscape Trees – 10

Previous Steps

1a – Opposite leaf arrangement on stem — go to 2
- 2a – Leaf simple — go to 3
  - 3a – Leaves are lobed — go to 4
    - 4b – No milky sap — go to 5
      - 5b – Margins of lobes are toothed — go to 7
        
        7a – Three to five lobes, fairly similar in size. Base of middle lobe is wide. Sinuses are V-shaped and toothed — go to 8
        
        8b – Lobes fairly similar in size. Base of middle lobe is wide. Sinuses are V-shaped and toothed – go to 10

Current Step

Red Maple Leaf

10a – Cultivated tree; single trunk. Leaves more than 3 inches wide — Red Maple

10b – Native tree; can be multi-stemmed — Rocky Mountain Maple

Resources

About Us

Colorado State Extension Master Gardeners work to enhance Coloradans’ quality of life by extending knowledge-based education to local communities, helping individuals make informed decisions about plants and fostering successful gardeners while protecting neighborhood environments.

Have a question?

Available to All

Colorado State University Extension is an equal access and equal opportunity University and program. Learn more https://col.st/ll0t3

Search