Stipe. The stalk-like support of a pistil; the leaf-stalk of a Fern.
Stipitate. Having a stipe.
Stipular. Belonging to stipules.
Stipulate. Having stipules.
Stipule. An appendage at the base of a petiole or on each side of its insertion.
Stolon. A runner, or any basal branch that is disposed to root.
Stoloniferous. Producing stolons.
Stoma (pl. Stomata). An orifice in the epidermis of a leaf communicating with internal air-cavities.
Striate. Marked with fine longitudinal lines or ridges.
Strict. Very straight and upright.