In botany, a stipe is a stem type of structure.
It may be a stemlike structure, as of a seaweed, or a true leaf stem, as of a fern.
In the case of the fern, the stipe is only the petiole ( = stem) from the rootstock to the beginning of the leaf tissue, or lamina.
The continuation of the structure within the lamina is then termed a rachis.
This structure is particularly common in brown algae such as kelp.
A stipe is the stalk-like support of a pistil.
In orchids, the stipe or caudicle is the stalk-like support of the pollinia. It is a non-viscid band or strap connecting the pollinia with the viscidium (= the viscid part of the rostellum or beak).
A stipe is also the stalk supporting the fruiting body of some fungi.