In the case of a post frame (or pole) building, wainscot has moved to the exterior of the building. In simple terms, it is the utilization of an alternate siding panel to cover the lower approximately three feet of the exterior walls.
Definition of parenchyma 1: the essential and distinctive tissue of an organ or an abnormal growth as distinguished from its supportive framework 2: a tissue of higher plants that consists of thin-walled living photosynthetic or storage cells capable of division even when mature and that makes up much of the substance of leaves and roots, the pulp of fruits, and parts of stems and supporting structures
In contrast, paratracheal parenchyma is axial parenchyma in which the cells are obviously associated with the vessels. In the aliform type of paratracheal parenchyma, cells extend tangentially from the vessels and are seen in cross section as lateral wing-like projections. Parenchyma (also referred to as Ground Tissue or Soft Tissue) - Cells in a tissue of a tree that are concerned with function rather than structure.