AP BIOLOGY

Detailed explanation-1: -Some roots, called adventitious roots, arise from an organ other than the root-usually a stem, sometimes a leaf. They are especially numerous on underground stems, such as rhizomes, corms, and tubers, and make it possible to vegetatively propagate many plants from stem or leaf cuttings.

Detailed explanation-2: -The roots that arise from plant parts other than radicle are called adventitious roots. They can be from different parts of the plant and are accordingly called nodal roots, stem roots, crown roots, junction roots, etc.

Detailed explanation-3: -An example of adventitious roots in plants is Banyan whose scientific name is Ficus benghalensis. These are known as prop roots.

Detailed explanation-4: -Although a wide variety of root systems exist across different species, all plants have a primary root (derived from an embryonic radicle) and different types of lateral roots. Adventitious roots, by comparison, display the same functions as lateral roots but develop from aerial tissues.