Plant terms are words and phrases that are used in botany. Plant terms describe plant life, growth, structure and classification. Knowing and understanding plant terms is vital to the study of botany.



Wilt, a group of plant diseases that cause leaves to shrivel. Wilt is caused by drought, by excessive transpiration (evaporation of moisture from plant cells) on hot days, by damage to roots and stems, and by bacteria and fungi that block the moisture-carrying tissues in plants.

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  • Water plants
    Water plants

    Water (or Aquatic) Plants, plants that live in water. Some plants live submerged in water, either fixed in place or freely floating. See more »

  • Adenosine Triphosphate (ATP)
    Adenosine Triphosphate (ATP)

    Adenosine Triphosphate (ATP), an energy-bearing molecule found in all living cells. See more »

  • Arboretum

    Arboretum, a place where trees and shrubs are cultivated for ornamental, educational, and scientific purposes. See more »

  • Arnold Arboretum
    Arnold Arboretum

    Arnold Arboretum, the botanical garden of Harvard University, located in Boston. It was founded in 1872 to encourage the scientific study and cultivation of trees and shrubs. See more »

  • Bark

    Bark, the outer covering of the stems, branches, and roots of woody plants. It consists of all tissues outside of the vascular cambium, the layer of cells that encloses the inner stem. See more »

  • Blight

    Blight, a general term for any plant disease that causes withering, decay, or premature death of the plant or any of its parts. See more »

  • Bordeaux Mixture
    Bordeaux Mixture

    Bordeaux Mixture, a liquid used for controlling fungi on plants. It is a mixture of copper sulfate, hydrated lime, and water. See more »

  • Bran

    Bran, the outer layers of cereal grains (such as wheat and oats). Bran is a good source of carbohydrates, calcium, phosphorus, and fiber. See more »

  • Bryophyte

    Bryophyte, a simple plant with no flowers and no true roots. Bryophytes include mosses, liverworts, and hornworts. See more »

  • Bud

    Bud, the part of a plant that develops into a leafy shoot, a flower, or both. The leaf bud consists of a small, pointed shoot surrounded by rudimentary leaves. See more »

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