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 – 24

Previous Steps

1b – Alternate leaf arrangement on stem — go to 18
- 18a – Leaf simple — go to 19
  - 19b – Thornless — go to 22
    - 22d – All leaves lobed — go to 23
      - 23a – Pinnate ventation — go to 24

Current Step

24a – Leaves clustered toward stem tip. Pith is 5-angled or star-shaped — go to 25

24b – Leaves not clustered toward tip of stem. Pith not 5-angled — go to 29

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

Colorado State University

Extension

Key to Identifying Common Colorado Landscape Trees – 24

Have a Question

Instagram Feed

About Us

Have a question?

Available to All

Search