What is the gardening term for roots that grow from non-root tissues?

Adventitious roots refer to roots that grow from non-root tissues, such as stems or leaves. This type of root formation is crucial for plants in various situations, such as providing additional support or facilitating propagation. For instance, many climbing plants develop adventitious roots that allow them to attach to surfaces and gain stability as they grow upwards.

While the terms epiphytic roots and aerial roots can also refer to types of roots that may serve specific functions, they usually relate to particular plant adaptations to environmental conditions rather than the general characteristic of roots emerging from non-root tissues. Tap roots, on the other hand, describe a single, thick root that grows deep into the soil, which is a different concept altogether.

In summary, the recognition that adventitious roots arise from non-root tissues sets it apart from other types of root systems, making it the appropriate term for this gardening concept.