Dicotyledonous
Dicotyledonous
Dicotyledonous (pronunciation: /ˌdaɪkoʊtɪˈliːdənəs/), often abbreviated as dicot, is a term that describes a group of flowering plants whose seed typically has two embryonic leaves or cotyledons. The term is derived from the Greek words "di" meaning two, and "kotyledon" meaning seed leaf.
Etymology
The term "Dicotyledonous" is derived from the Greek words "di" meaning two, and "kotyledon" meaning seed leaf. This refers to the characteristic of these plants to have two embryonic leaves or cotyledons in their seeds.
Characteristics
Dicotyledonous plants are characterized by having two embryonic leaves or cotyledons in their seeds. Other characteristics include net-like leaf veins, flower parts in multiples of four or five, and the formation of a cambium in the stem.
Classification
Dicotyledonous plants were traditionally grouped into a single taxonomic unit known as the Dicotyledones or Dicots. However, modern botanical classification systems such as the Angiosperm Phylogeny Group (APG) system have divided the dicots into several groups based on genetic relationships.
Examples
Examples of dicotyledonous plants include many common plants such as roses, sunflowers, peas, and oaks.
See also
External links
- Medical encyclopedia article on Dicotyledonous
- Wikipedia's article - Dicotyledonous
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