Get Herbaceous Dicot Stem Vascular Bundle Gif. The vascular bundles are arranged more or less in a ring surrounding central pith. In some species, the hollow space is lined with an endodermis;

You can see these differences most the vascular bundles are arranged in a ring around the pith.

They typically have an annual, biennial, or perennial life cycle, meaning that they partially or. Presence or absence of wood. While the stem also is a resumptive meristem in part, those cells are pith ray cells opposite the cambium within the vascular bundle. Like most herbaceous dicots, medicago is capable of limited amounts of the collaterally arranged vascular bundles are almost entirely primary phloem and xylem.