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Dicotyledon Plants: Examples & Definition

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  • 0:00 What Are Dicotyledon Plants?
  • 0:59 Examples of Dicotyledon Plants
  • 2:08 Lesson Summary
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Instructor: Derrick Arrington

Derrick has taught biology and chemistry at both the high school and college level. He has a master's degree in science education.

When evaluating the structure of plants, botanists classify them as monocots or dicots. In this lesson, we'll learn about dicots, more formally known as dicotyledon plants.

What Are Dicotyledon Plants?

Plants are classified by botanists as either monocotyledons or dicotyledons.

Monocotyledons, or monocots for short, are plants with just one cotyledon. A cotyledon is a seed leaf, which is the first leaf of a plant to develop and an important part of the seed and embryo. Dicotyledons, or dicots, are plants that have two initial cotyledons. This lesson focuses on dicots.

In addition to having two seed leaves, dicots have flower parts in groups of four or five. Additionally, the vascular bundles that carry water and nutrients through the stems of dicots are arranged in concentric circles rather than being randomly scattered. They also have roots that grow from the radicle of the developing seed, whereas monocot roots are adventitious and can grow from stems and other parts of the plant.

Examples of Dicotyledon Plants

One classic example of a dicotyledon plant is the magnolia tree. These trees grow in many places in the southern United States. In fact, the magnolia is the state tree of Mississippi. Magnolia trees are classified as dicots because they germinate with two cotyledons. Their vascular bundles are arranged in circles, and their flowers have petals and sepals in groups of four.

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