rootstock

A root system of a plant, often with a portion of the stem, to which a shoot or bud is grafted.

In botany, same as rhizome.

The original ground or cause of anything; a root.

In zoology, a cormus, as of a zoöphyte; a rhizocaulus.

A perennial underground stem, producing leafly s�ems or flower stems from year to year; a rhizome.

A healthy plant that is used as the base for grafting a scion

The necessary basis for something to develop

root or part of a root used for plant propagation; especially that part of a grafted plant that supplies the roots

a horizontal plant stem with shoots above and roots below serving as a reproductive structure