Shrubs are medium-sized plants, about 1-3 metres in height. They have thin, hard stems with branches that arise near the base of the stem. Rose, hibiscus and lemon plants are examples of shrubs.

A pedicel is a structure that connects one flower to its inflorescence. A peduncle is a stem or branch from the main stem of the inflorescence that carries a collection of pedicels. A pedicel can be paired with one or more bracts. It is a stem that attaches a single flower to the inflorescence. The function of pedicels is to expose flowers to the sun and wind and put them in a position so their aroma and color attracts pollinating insects more easily.

The transfer of pollen grains from the anther to the stigma of a flower is called pollination. It is one of the most important mechanisms of sexual reproduction. Pollination can occur in two ways: self-pollination and cross-pollination.