Pith

Pith refers to the innermost part of a stem or branch of a plant. It is a soft, spongy tissue that is typically white or pale yellow in color. Pith is composed of parenchyma cells, which are large, thin-walled cells that often contain starch. The pith is surrounded by a ring of vascular tissue, which includes the xylem and phloem.

Structure and Function

The pith is located in the center of the stem or branch and is surrounded by the vascular tissue. The pith is composed of parenchyma cells, which are large, thin-walled cells that often contain starch. These cells are responsible for storing and transporting nutrients throughout the plant.

The pith is surrounded by a ring of vascular tissue, which includes the xylem and phloem. The xylem is responsible for transporting water and nutrients from the roots to the rest of the plant, while the phloem transports sugars and other metabolic products from the leaves to the rest of the plant.

Uses

Pith has been used for various purposes throughout history. For example, it has been used to make paper, as a packing material, and as a medium for growing orchids. In some cultures, pith is also used as a food source.

See Also

• Parenchyma
• Xylem
• Phloem

References

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