Nervure and Vascular bundle

Nervure noun - Any of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ.

Vascular bundle and nervure are semantically related. In some cases you can use "Vascular bundle" instead a noun "Nervure".

Vascular bundle noun - A unit strand of the vascular system in stems and leaves of higher plants consisting essentially of xylem and phloem.

Nervure and vascular bundle are semantically related. Sometimes you can replace term "Nervure" with "Vascular bundle", this terms are similar.