Graminoids (Grasses, Sedges, Rushes) ID for Wetlands and Wetland Delineators

Course Overview

This course was developed for wetland delineators and others needing to recognize and identify graminoids in wetlands, especially species likely to be seen in the field during wetland delineations. This course is designed to be relevant in any geographic locality. The course will be taught live online instruction using both fresh and dried specimens collected by Dr. Thomasson and shipped to you before the course start. During the class participants will be introduced to sufficient plant terminology to enable them to use regional floristics keys and the internet to identify graminoid species. Live dissections of specimens online will provide abundant opportunities for participant questions.

Participants will also receive a course notebook that includes a booklet written by Dr. Thomasson with color, labeled images illustrating essential graminoid features and characteristics needed for identification of unkown specimens.  The notebook will also include keys to graminoids and excercises outlining and describing identification features of each graminoid group.

20 Contact Hours, Instructor: Thomasson.


Tuition cost:
(early bird rates when you register by 1/17/2022)

Your Course Includes

Fresh and Dried Specimens and Associated Booklet

Receive fresh and dried specimens and a booklet of color, labeled images illustrating essential graminoid features and characteristics for reference after the course.

Notebook and Dissecting Tools

Your instructor will provide a notebook that will assist you in learning graminoid features used to identify species in any geographic locality. You will also receive disseccting needles, a razor knife, and ruler for use during the class.

Instructor Interaction

The instructor will show live dissection of specimens during the class with ample opportunity for participsnts to ask questions. 

Frequently asked Questions

Where is the specific location or venue for this course?

This course will take place ONLINE via live instruction.

Does this course apply towards my certification program?

Your certificate of completion can be used to document instructional hours received in this topic. You should contact the specific certifying agency or association directly to find out how they will assess or credit this WTI course. Typically, our courses are accepted by all state and national certifying agencies and associations; however, you should confirm that with the specific certification program to which you are applying or renewing.

Course Location

Date Location Register by Location



Dr. Joseph Thomasson is curator emeritus of the herbarium at the Sternberg Museum of Natural History in Hays, KS, and has taught plant identification courses for WTI since 2011. He has taught university courses in agrostology, dendrology and plant taxonomy for more than 30 years, and has conducted plant surveys for many government agencies and private companies.”