A tree canopy viewed from beneath


Plants form a kingdom which includes groups that reproduce by spores, such as mosses and ferns, and groups that reproduce by seeds, such as conifers and flowering plants. Plants get their energy through photosynthesis, using sunlight to convert water and carbon dioxide into sugar and releasing oxygen as a by-product - perhaps the most important biological process on Earth.

Scientific name: plantae

Rank: Kingdom

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Plant size range

A graphic illustration comparing the sizes of plants, from largest to smallest: Sequoia tree, English oak, baobab tree, palm tr

A comparison of plant sizes - from the 115m tall sequoia (giant redwood) to the 3m tall titan arum.


  1. Life
  2. Plants

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Take a trip through the natural world with our themed collections of video clips from the natural history archive.