Leaflet—a single member of the compound leaf borne by all rose plants.
Maiden plant—a plant blooming for the first time after being budded or grafted to a stock.
Ovary—the hollow lower end of a pistil, containing the embryo seeds.
Panicle—a cluster of flowers borne irregularly on a stem.
Petiole—the stalk to which the several leaflets are attached.
Pistil—the seed-bearing organ in the center of a flower, consisting of one or more styles, one or more stigmas and the ovary.
Pollen—the powdery substance found in the anthers.
Remontant—applied to roses that flower the second time in a summer.
Sepals—the narrow green leaves of a pithy texture forming the calyx.
Sport—a shoot or sucker from a plant, showing some peculiar feature or features distinguishing it from its parent.