It may sometimes be difficult to distinguish between roots and stems, but one sure way is to look for the presence of nodes. Stems are commonly used for plant propagation. Above-ground stems can be divided into sections that contain internodes and nodes. They are utilized as cuttings and will produce stems that are good propagative tissues. Rhizomes can be divided into pieces.
Bulbs form small bulblets at the base of the parent bulb.
Cormels are miniature corms that form under the parent corm. Tubers can be cut into pieces containing eyes and nodes. All of these will produce new plants. Stems A shoot is a young stem with leaves present. A twig is a stem which is less than one year old and has no leaves since it is still in the winter-dormant stage.