From Greek xylon, wood, tree trunk. Woody part of the plants, constituted in the upper albura and duramen with conductive functions of raw sap, functions that lose in the duramen to give consistency and stability.
It is a woody vascular or tissue element of higher plants which serves as a conduit to transport the SAP and nutrients (water and inorganic salts) in ascending order.
XILEMA:MADERA.FABRIC TRAQUEOFITO OR SWING AND WOODY THE GYMNOSPERMS AND ANGIOSPERMS, THEY TRANSPORT THE SAP THROUGH THE LEAVES TO THE ENTIRE PLANT.