Fossilized Jurassic plant root with corm

Fossilized plant root with corm. Root likely belongs to equisetum. Collected in 2021 in Hartford County Connecticut. Early Jurassic, East Berlin Formation.

Certain plants have a swollen, underground plant stem called a "corm." The purpose of this stem is to store nutrients, food that the plant will use at a future time. Nutrients stored in the corm during one growing season will help in the production of roots, leaves, and flowers for the next growing season.