Moss & Lichen: Science and Stroll

Date/Time
Date(s) - November 14, 2026
10:00 am - 12:00 pm

Categories

• Classes & Activities

Join instructor Ruth Williams, as she guides you through an exploration of the tiny world of lichens and moss. Discover the lifeycles and ecological niches that are unique to these organisms as you get acquanited with five common moss and lichen you will find in the Portland area. The program will start with a discussion indoors before heading out on the trails for a walk on paved paths that will total less than one mile.

• Class size is limited and pre-registration is required
• Registration closes Friday, November 13th at 4:00pm
• Additional details will be emailed one week prior to the program

About the Instructor: Ruth Williams is a consulting arborist and plant enthusiast with degrees in Horticulture and Landscape Architecture from UC Davis. Working as a local consulting arborist, she helps preserve trees for future generations. She teaches and guides interpretive hikes on a wide variety of ecological subjects.

Additional Program and Accessibility Information:

• Please review our adult education policies.
• Learn more about Visitor Center accessibility and paved trail options.
• We offer discounted program rates if you participate in an Oregon income assistance program. Please email [email protected] for more information.
• Members of Hoyt Arboretum Friends can sign up for classes at discounted rates.