: cambia or cambiums) is a tissue found in many vascular plants as a part of the epidermis.The cork cambium is a lateral meristem and is responsible for secondary growth that replaces the epidermis in roots and stems.Phellogen is defined as the meristematic cell layer responsible for the development of the periderm.Cork has many uses including wine bottle stoppers, bulletin boards, coasters, hot pads to protect tables from hot pans, insulation, sealing for lids, flooring, gaskets for engines, fishing bobbers, handles for fishing rods and tennis rackets, etc.It is also a high strength-to-weight/cost ablative material for aerodynamic prototypes in wind tunnels, as well as satellite launch vehicle payload fairings, reentry surfaces, and compression joints in thrust-vectored solid rocket motor nozzles.