Bell pepper, also known as sweet pepper or a pepper (in the UK) and capsicum (in Australia and New Zealand), is a cultivar group of the species Capsicum annuum (chili pepper). Cultivars of the plant produce fruits in different colors, including red, yellow, orange and green. Bell peppers are sometimes grouped with less pungent pepper varieties as "sweet peppers". Peppers are native to Mexico, Central America and northern South America. Pepper seeds were later carried to Spain in 1493 and from there spread to other European, African and Asian countries. Today, China is the world's largest pepper producer in the world, followed by Mexico.
Capsicum is a genus of flowering plants in the nightshade family, Solanaceae. Its species are native to the Americans where they have been cultivated for thousands of years, but they are now also cultivated worldwide, used as spices, vegetables, and medicines, and have become a key element in many regional cuisines.
The fruit of Capsicum plants have a variety of names depending on place and type. They are commonly called chili pepper, red or green pepper in North America, or sweet pepper in Britain, and typically just "capsicum" in Australia, New Zealand, and India. The large mild form is called bell pepper in the U.S. and Canada. They are called paprika in some other countries (although paprika can also refer to the powdered spice made from various capsicum fruit). The generic name is derived from the Greek word κάπτω (kapto), meaning "to bite" or "to swallow." The name "pepper" came into use because of their similar flavour to the condiment black pepper, Piper nigrum, although there is no botanical relationship with this plant, or with Sichuan pepper.