Basic Plant ID (Online or In-person)

Schedule and Location

Section B: In-person Only

  • Saturday, May 11, 2019, 1:00 to 3:30 p.m: In-person class only
  • Thornhill Education Center

Section C: Online Only

  • Tuesday, May 28, 2019: Registration closes at 11:59 p.m
  • Wednesday, May 29, 2019: Online class begins 

Section D: In-person Only

  • Sunday, June 9, 2019, 1:00 to 3:30 p.m: In-person class only
  • Thornhill Education Center

Fees and Registration

$16.00 member
$20.00 nonmember
(Fees include admission to the Arboretum)

BY PHONE: 630-719-2468 (Monday-Friday, 9:00 a.m. to 4:00 p.m.)

Course Description

Get the botany basics you need to identify plants. Whether you are a natural resources volunteer or specialist,  gardener, naturalist, or artist this class provides the fundamentals you need to get started. 

Basic Plant ID (In-person Only)
Attend a 2 hour session at the Arboretum to learn botanical vocabulary and plant ID skills with the guidance of an Arboretum plant expert.

Basic Plant ID (Online Only)
From the comfort of your home or office, use self-paced online learning modules to learn about plant identification. Slides narrated by an Arboretum plant expert and interactive, no-pressure quizzes will help you learn the vocabulary to name plants and describe their structures and life histories.

Plan to spend a total of about 90 minutes completing the online material.  Students will have access to the online materials for 60 days. 

Course number



Sharon Yiesla, plant knowledge specialist, The Morton Arboretum

Sharon Yiesla is a horticulturist of 30 plus years.  She has a B.S. in horticulture from Purdue and an M.S. from University of Illinois.  She has worked with University Extension in Missouri and with University of Illinois Extension and is currently the plant Knowledge specialist at The Morton Arboretum.

Course Details

Notes: The in-person session will include time both indoors and outdoors, so please dress for the weather. For the online only session, The online materials will take approximately 90 minutes to complete. Participants will have access to the online materials for 60 days the course start date.
Limit 20. 
Requirements: For the online only-session, participants must:

  • Have access to the internet and know how to use a web browser (ex: Chrome, Safari, Internet Explorer)
  • Know how to send and receive email.
  • Provide a unique email address for each participant at registration.

Continuing education: This class fulfills a requirement for the Natural Areas Conservation Training  Program. (Learn more about N-ACT.) 2 CPDH credits for educators are available. 2 Continuing Education Credits are available from the Society for Ecological Restoration (SER). 

Arboretum class weather, cancellation and refund policies