What is another word for root-sheath?
Pronunciation: [ɹˈuːtʃˈiːθ] (IPA) 
Root-sheath, the protective covering that surrounds the root of a plant, has several synonyms that are commonly used in biology. One such synonym is the "periblem," which refers to the outermost layer of cells in the growing root. Another synonym is the "rhizodermis," which is the outermost layer of root cells that are in direct contact with the soil. Additionally, the "endodermis" is the innermost layer of the root sheath and is responsible for controlling the movement of water and nutrients between the root and the plant. These synonyms may be used interchangeably when describing different aspects of the root-sheath and its functions.
