Adult Programs

Woodland Trees (online and in person)

Learn to identify the trees you see every day in the woodlands and neighborhoods of the Chicago region.

Content Detail

Learn to identify the trees you see every day in the woodlands and neighborhoods of the Chicago region. Explore the ecology of the various tree species and find out why they grow in each habitat, as well as special considerations for restoring native tree species.

How do I access the program?

  • When you enroll in the course, you will be emailed instructions for accessing Treelearning, the Arboretum’s online learning portal.  Unless otherwise noted, you will have access to the course for 60 days from the course start date. 
  • Log into to complete self-paced activities, such as e-learning modules, reading material, short videos, interactive activities, and quizzes to check your understanding. 
  • The self-paced activities do not need to be completed in one sitting, and your instructor will not be online with you. 

This class will spend one day exploring tree identification in the Arboretum’s woodlands. 

# W214

COVID-19 Precautions: Program participants must abide by the Arboretum’s safety guidelines


  • This class includes both online and on-site sessions. Online assignments must be completed before the on-site class. 
  • The online materials will take approximately 90 minutes to complete. 
  • Registration closes five hours before online materials become available. Participants will have access to the online materials for 60 days after the course start date.
  • Please dress for the weather during the on-site session, with sun protection, long sleeves, long pants, and sturdy footwear. If rain is forecast, bring rain gear.
  • Bring water and a snack. 
  • Limited to 20 participants.


  • Participants should have previously completed Basic Plant ID (W010) or have previous experience with plant identification.
  • A unique email address for each participant is required at registration. 

Trinity Pierce, stewardship manager, Chicago Region Trees Initiative

Trinity Pierce thrives on leading and learning alongside volunteers in and around green spaces. She has designed and implemented restoration projects from the mountain west to the Midwest; from rural to urban ecosystems.

In her role as the Chicago Region Trees Initiative (CRTI) stewardship manager, Trinity collaborates with communities to increase awareness of the importance and benefits of trees and foster action through plantings and ongoing maintenance in order to grow a healthier, more diverse urban forest. Trinity holds a Master’s degree in Landscape Architecture from the University of Michigan and has a background in history, ecological restoration, and urban green space reconciliation.


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