What plants have primitive vascular bundles?
The non-flowering plants have primitive vascular bundles.
Only Pteridophytes have vascular bundles. The vascular bundles of the vascular Cryptogams are primitive. So, they have limited scope of distribution. The advance vascular bundles have xylem vessels, which are helpful for survival in adverse conditions, because xylem vessels are efficient in the ascent of sap even in adverse conditions. Thank you