True Sedge Workshop: A Weeklong Dive into the Genus Carex

2 Credit Hours
June 1–5, 2026
Instructors: Dr. Joey Shaw, UT-Chattanooga

True sedges are famously challenging to identify. With numerous species often growing side by side in the same microhabitats, reduced and specialized floral structures, unique terminology, and diagnostic features that may rely on very small measurements—or even mature material—students of botany can easily feel overwhelmed. It is no surprise that sedges are among the plant groups learners struggle with most.

This course focuses on two primary goals:

Building fluency in sedge terminology and learning how to confidently apply and interpret that terminology when using identification keys.

Understanding the key characteristics that distinguish the many taxonomic sections of the genus Carex—the largest and most complex sedge genus—as well as how to separate Carex from other spring-flowering sedges.

Using herbarium specimens, newly collected material, and additional plant samples provided in class, we will assemble an in-room reference collection organized by genus and Carex section. This hands-on approach allows students to compare specimens directly, reinforcing both visual recognition and taxonomic concepts.

This workshop is designed to strengthen identification skills and build confidence in working with this large and intricate group of plants. For most participants, our focus will remain at the level of distinguishing Carex sections rather than resolving species-level identifications—though students wishing to work at the species level are welcome and encouraged to do so!