Dicot Root vs. Monocot Root: What's the Difference?

Key Difference

As we know that plants are mainly divided into two types, namely flowering plants and non-flowering plants (angiosperms or gymnosperms). It should be kept mentioned that around 80% of all the existing green plants are flowering plants. These flowering plants are further divided into monocots and dicots. The monocot is the plant that has only one cotyledon in the embryo, whereas dicot is the plant that has two cotyledons in the embryo.  Monocots and dicots differ from each other in four structures: leaves, stems, roots and flowers. Here we’ll be differentiating it between the roots of the monocot and dicot plant. In monocot roots, the pericycle present only produces the lateral roots, whereas, in dicot roots, the pericycle gives rise to lateral roots, cork cambium, and the part of the vascular cambium. The other big difference between the monocot roots and dicot roots is the presence of some xylem and phloem. In monocot roots, the xylem and phloem are numerous in numbers. On the other hand, in dicot roots, the xylem and phloem are limited in numbers.

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Comparison Chart

Dicot Root Monocot Root
Pericycle In dicot roots, the pericycle gives rise to lateral roots, cork cambium, and the part of the vascular cambium. In monocot roots, the pericycle present only produces the lateral roots.
Xylem & Phloem In dicot roots, the xylem and phloem are limited in numbers. In monocot roots, the xylem and phloem are numerous in numbers.
Pith The Pith is absent in the dicot root. In monocot root, Pith is large and well developed.
Secondary Growth The secondary growth occurs in the dicot root.Absent Absent

What is Dicot Root?

The dicot plants have the dicot root; they have the limited number of Xylem and Phloem present. The Xylem they possess is in the ‘X’ shape, and it I surrounded by the phloem. At the very same time, the number of Xylem and Phloem remains very much same in the dicot roots as the phloem bounds each of the xylems in it. Their vascular bundles are arranged in the form of one or two broken rings. These bundles are definite in shape and size and are smaller in size as compared to the bundles in the monocots. The hypodermis in the dicot stem is made up of the collenchyma. In the cross section, metaxylem vessels are polygonal in shape. The secondary growth occurs in the dicot root. Moreover, the pericycle gives rise to the cork cambium, lateral roots and the part of the vascular cambium.

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What is Monocot Root?

The monocot plants have the monocot roots; the number of xylem and phloem are numerous in this case. The Xylem vessels present are of round or oval-shaped. The pericycle present only produces the lateral roots.  The Pith is present in the Xylem, and it is quite large and well developed. The conjunctive tissue present in the monocot roots is mostly made up of the sclerenchymatous, although in some cases it can be parenchymatous. Double layer sheath surrounds each vascular bundle in monocots. The outer layer is thick and inner layer is thin. Xylem consists of vessels and tracheids and occurs towards the upper surface. Phloem consists of tubes.

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Dicot Root vs. Monocot Root

  • In monocot roots, the pericycle present only produces the lateral roots, whereas, in dicot roots, the pericycle gives rise to lateral roots, cork cambium, and the part of the vascular cambium.
  • In monocot roots, the xylem and phloem are numerous in numbers. On the other hand, in dicot roots, the xylem and phloem are limited in numbers.
  • The Pith is absent in the dicot root, whereas in monocot root it is large and well developed.
  • The secondary growth occurs in the dicot root, although it is absent it in the case monocot root.

Explanatory Video

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