Fluid used to transport water nutrients and water within a plant.
Sap is a fluid that is transported throughout a plant in order to transport water and nutrients. Transport is effected with xylen cells or phloem sieve tubes; which use osmosis (and surface tension / evapotranspiration effects) to lift the sap against gravity.
Sap usually consists of water, sugars, hormones, and mineral elements. It can be harvested - for example, maple syrup is made from reduced sap tapped from sugar-maple trees.
Use this tag for all questions about sap. For example, how to avoid sap seepage (which is often caused by insect damage).