Ground tissue

Ground tissue is the name for a number of different kinds of tissue of plants. These kinds are usually classified by looking at the cell walls. There are three different main kinds:
Parenchyma cells have thin primary walls and usually remain alive after they become mature. Parenchyma forms the "filler" tissue in the soft parts of plants. 
Collenchyma cells have thin primary walls with some areas of secondary thickening. Collenchyma provides extra structural support, particularly in regions of new growth. 
Sclerenchyma cells have thick lignified secondary walls and often die when mature. Sclerenchyma provides the main structural support to a plant.

Category:Plant anatomy
Category:Plant tissues