Capsicum annuum

Capsicum annuum is a domesticated species of the plant genus Capsicum native to Mexico.

The plant is a perennial, but usually grown as an annual, with a densely branched stem. The plant reaches 0.5–1.5 m (20–60 in). Single white flowers bear the fruit which is green when unripe, changing principally to red, although some varieties may ripen to other colours including brown and purple.

Use
The species is a source of popular sweet peppers and hot chili fruit, and numerous varieties are cultivated around the world. Despite being a single species, Capsicum annuum has many cultivars, with a variety of names. In American English it is commonly known as the chili pepper or bell pepper.

In British English, the sweet varieties are called peppers and the hot varieties chillies, whereas in Australian and Indian English the name capsicum is commonly used for bell peppers exclusively and chilli is often used to encompass the hotter varieties.

Source: http://en.wikipedia.org/wiki/Capsicum_annuum
See Also: florist Paris, Vietnam flower, India flower