Plant Stem Tissue Patterns

In the study of plants, understanding the different tissue patterns is essential.

Monocot stem vs. dicot stem. (Image credit: CNX OpenStax, CC BY-SA 4.0)

Steles

Steles are a central cylinder in most younger stems and roots, composed of primary xylem, phloem, and the pith, if present. Sometimes referred to as eusteles, which are vascular bundles in higher vascular plants.