plant vascular system A maximal portion of vascular tissue (PO:0009015) in a whole plant (PO:0000003), collective plant structure (PO:0025497), multi-tissue plant structure (PO:0025496), or cardinal part of multi-tissue plant structure (PO:0025498). vasculature A vascular system consist of the totality of the portions of vascular tissue in their specific arrangement in a plant structure. May include other portions of plant tissue or plant cells (PO:0009002) of other types, such as parenchyma (PO:0005421) or fiber cells (PO:0025407). plant anatomical entity