Salverform
Term used to describe a flower having a tubular shape base with the petals opening out to form a flat plate as seen in the flowers of Plumbago.
Sepal
Leaf like structures that protect the petals during the bud stage.
Sessile
Leaf or flower that attaches directly to the stem.
Simple Leaf
Have only one lamina or blade for each petiole and are not divided into leaflets.
Species
Plants within a species have several characteristics in common, but most importantly, can cross with one another, but not normally with members of another species. The classification of species is quite fluid, with frequent revision by botanists.
Stamen
Is the male Part of the flower and consists of the anther that produces the pollen and the filament that holds the anther.
Staminous
Flowers having showy stamens. There are two types:
Conspicuously Staminous - petals and sepals very small as in Melaleuca and Callistemon
Apetalous Staminous - petals and sepals form a cap and are lost when flower opens as in Eucalypts.
Stellate
Term to describe flowers that are star shaped with petals that tend to be separate from each other as seen in the Day Lily.
Stolon
Is an above ground stem that can form adventitous roots when in contact with the ground. Examples of this would include strawberries and some grasses
Suaveolens
A latin word used in plant naming meaning - sweet smelling.
Succulent
A plant which stores moisture in its swollen stems or leaves to help it survive in arid conditions. Cactii are a classic example and Aloe is another well know succulent plant.
Sucker
A shoot or stem that grows from the root of a plant - often after it is damaged by digging too close to the plant. The resulting plant growth is usually weaker than from the main stems and should be cut off so as not to drain the plant of energy.