Young root tip: axis of the plant which grows in the opposite direction from the stem, maintain the plant in place and absorbs nutrients.
Surface: view of the external part of a root.
Longitudinal section: cut through the length of the root.
Root hair zone: part of the root on which are located the root hairs that absorbs water and nutrients.
Elongation zone: set of cells that determine the growth of the root.
Apical meristem: tissue at the top of the root composed of rapidly multiplying cells.
Root cap: envelope that protects the young root.

Photo :

EN : Leaf margin
FR : Bords du limbe
ES : Bordes del limbo


The leaf margin is characteristic for a genus and aids in determining the species.