In biology, stolons, also known as runners, are horizontal connections between parts of an organism. They may be part of the organism, or of its skeleton. Typically, animal stolons are exoskeletons.
Ficinia spiralis (pīngao) spreads by forming stolons in the sand.
Argentina anserina (common silverweed) showing red stolons
These stolons from the corm of a Crocosmia are stems that emerged from axillary buds at the nodes of the tunic leaves.
'Lipstick' hybrid strawberry (Comarum palustre × Fragaria × ananassa) growing new plants using vegetative propagation along stolons.
A stem is one of two main structural axes of a vascular plant, the other being the root. It supports leaves, flowers and fruits, transports water and dissolved substances between the roots and the shoots in the xylem and phloem, photosynthesis takes place here, stores nutrients, and produces new living tissue. The stem can also be called halm or haulm or culms.
Stem showing internode and nodes plus leaf petioles
This above-ground stem of Polygonum has lost its leaves, but is producing adventitious roots from the nodes.
Climbing stem of Senecio angulatus.
Decumbent stem in Cucurbita maxima.