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Term Definition
Adventitious Referring to an organ arising from an unusual position, especially buds or roots; e.g., the aerial roots of species of Araceae. The development of hypogeous fruits. Photos by S. A. Mori.
Adventitious roots Roots arising directly from a part of the plant other than the primary root, e.g., the roots that arise from the base of the stem of a corn plant (Zea mays) but adventitious roots can also arise from other parts of a plant. Closer view of the adventitious roots of Rhus radicans. Image by M. Rothman.