Esau, Katherine Department of Botany, University of California, Santa Barbara, California.
Last reviewed:January 2021
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- Stem and leaves
- Flower, fruit, and seed
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Plant parts having rather distinct form, structure, and function. Plant organs are the key anatomical features of plants. They include the aboveground leaves, stems, and reproductive structures of the plant's shoot system, as well as the belowground root system, which contains the roots (see illustration). Plant organs, though, are interrelated through both evolution and development and are similar in many ways. See also: Plant; Plant anatomy; Plant evolution; Plant physiology; Plant tissue systems
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