Plantae
Plantae (plan-tay)
The Plantae (Latin: Plantae, meaning "plants") is a kingdom in the taxonomical hierarchy that includes all living or extinct green plants.
Etymology
The term Plantae is derived from the Latin word 'planta', which means "sprout" or "green shoot".
Definition
The kingdom Plantae encompasses a diverse range of organisms including flowering plants, conifers, ferns, mosses, and green algae. These organisms are eukaryotic, which means they have complex cells, and they are autotrophs, meaning they produce their own food through photosynthesis.
Characteristics
Plants are characterized by their ability to produce food through photosynthesis, a process that uses sunlight, water, and carbon dioxide to produce glucose and oxygen. They also have cell walls made of cellulose, a complex carbohydrate.
Classification
The kingdom Plantae is divided into several subgroups, including:
- Bryophytes: These are non-vascular plants that include mosses and liverworts.
- Pteridophytes: These are vascular plants that reproduce via spores, such as ferns and horsetails.
- Gymnosperms: These are vascular plants that produce seeds in cones, such as pines and firs.
- Angiosperms: These are vascular plants that produce seeds in flowers. They are the most diverse group of plants.
Related Terms
External links
- Medical encyclopedia article on Plantae
- Wikipedia's article - Plantae
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