Meaning of Reino plantae

What is Reino plantae:

The kingdom plantae, the kingdom of plants or metaphytes, is the group of multicellular organisms, without means of displacement and autotrophs, that is, that produce their own food.

The science that studies plants is botany and the classification of plant groups is diverse. There are still organisms whose classification is debated, such as algae, of which many authors consider that only the green ones belong to the plantae kingdom.

See also Botany.

Characteristics of the kingdom plantae

The plants of the kingdom plantae have the following characteristics that define them as such:

  • They are multicellular: they are complex organisms composed of two or more cells, organized in tissues and these in organs.
  • They are eukaryotes: their cells have a defined nucleus and cellulose cell wall.
  • They are autotrophs: they are capable of producing their own food through inorganic matter. By having chlorophyll in their cells, they manage to capture the light energy of the sun and use it for photosynthesis.
  • They are aerobic: they do cellular respiration, breathing oxygen and expelling carbon dioxide.
  • They are immobile: they cannot move.

See also Photosynthesis.

Classification of the kingdom plantae

The kingdom plantae, also known as metaphytes, is characterized by being terrestrial plants within the embryophytes group (presence of the protected embryo). Plants feed on organic matter from the soil and are divided into vascular and non-vascular.

Non-vascular plants are classified in the group of bryophytes, which lack vascular tissue and are not divided into root, stem, and leaves. They reproduce by sexual spores and prefer humid climates. Some examples of these types of plants are mosses and ferns.

Vascular plants are characterized by developing root, stem, leaf, and vascular tissue. The latter carries water and nutrients. They are usually classified in the group of tracheophytes or cormophytes, which are divided into spermatophytes (produce seeds) and pteridophytes (do not produce seeds).

See also Plant cell.


Spermatophytes are the plants that produce seed and comprise much of the dominant flora. Their best known groups are:

  • Gymnosperms, which are woody in appearance, their pollination is through the wind and they have an ovule. Examples are pines and cypresses.
  • Angiosperms, constitute the most diverse group of the kingdom plantae and have seeds, flowers and fruits. The ovule is protected by the fruit, which can contain the seeds. Use insects as a means of pollination.


Pteriodophytes are seedless plants composed of root, stem, and leaves. They are autotrophic, photosynthesizing, multicellular and do not have the ability to move. An example of this group are ferns.

See also Kingdoms of Nature and Kingdom.

Kingdom plantae and animal

The kingdoms plantae and animal were the first two kingdoms defined in the classification of living beings. The philosopher Aristotle in 350 BC, defined these two great groups according to the similarities and differences in structure and appearance. One of the criteria used was the blood type divided into enaima, those with red blood, and anaima, those without red blood.

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