Capsicum annuum is a domesticated species of the plant genus Capsicum native to southern North America and northern South America. This species is the most common and extensively cultivated of the five domesticated capsicums. The species encompasses a wide variety of shapes and sizes of peppers, both mild and hot, ranging from bell peppers to chili peppers. In the past some woody forms of this species have been called C. frutescens, but the features that were used to distinguish those forms appear in many populations of C. annuum and there is no consistently recognizable C. frutescens species.
Although the species name annuum means “annual” (from the Latin annus “year”), the plant is not an annual and in the absence of winter frosts can survive several seasons and grow into a large perennial shrub. The single flowers are an off-white (sometimes purplish) color while the stem is densely branched and up to 60 centimetres (24 in) tall. The fruit is a berry and may be green, yellow or red when ripe. While the species can tolerate most climates, C. annuum is especially productive in warm and dry climates.
The species is a source of popular sweet peppers and hot chilis with numerous varieties cultivated all around the world.
In British English, the sweet varieties are called red or green 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. Americans call the sweet types "peppers" and the hot ones "chili peppers" or "chilies" (sometimes spelled "chiles").
Sweet peppers are very often used as a bulking agent in ready-made meals and take-away food, because they are cheap, have a strong flavour, and are colorful. The colorful aspect of peppers increases the visual appeal of the food, making it more appetizing. Foods containing peppers, especially chili peppers, often have a strong aftertaste due to the presence of capsinoids in peppers. Capsaicin, a chemical found in chili peppers, creates a burning sensation once ingested, which can last for several hours after ingestion.
Hot peppers are used in medicine as well as food in Africa and other places around the world.
English botanist John Lindley described C. annuum on page 509 of his 1838 'Flora Medica' thus:
|“||It is employed in medicine, in combination with Cinchona in intermittent and lethargic affections, and also in atonic gout, dyspepsia accompanied by flatulence, tympanitis, paralysis etc. Its most valuable application appears however to be in cynanche maligna (acute diphtheria) and scarlatina maligna (malignent Scarlet fever, used either as a gargle or administered internally.)||”|
- Gunna (properties) – ruksh (dry), laghu (light) and tikshan (sharp)
- Rasa dhatu (taste) – katu (pungent)
- Virya (potency) – ushan (hot)
Some cultivars grown specifically for their aesthetic value include the U.S. National Arboretum's Black Pearl and the Bolivian Rainbow. Ornamental varieties tend to have unusually coloured fruit and foliage with colors such as black and purple being notable. All are edible, and most (like Royal Black) are hot.
Dried Guajillo chile pod
See also 
- International Code of Nomenclature for Cultivated Plants
- List of Capsicum cultivars
Notes and references 
|Wikimedia Commons has media related to: Capsicum annuum|
|Wikispecies has information related to: Capsicum annuum|
- "Capsicum annuum L.". Germplasm Resources Information Network. United States Department of Agriculture. 1997-01-22. Retrieved 2010-07-29.
- "The Plant List".
- Latham, Elizabeth (2009-02-03). "The colourful world of chillies". Stuff.co.nz. Retrieved 2009-03-08.
- Zhi-Yun Zhang, Anmin Lu & William G. D'Arcy. "Capsicum annuum Linnaeus, Sp. Pl. 1: 188. 1753". Flora of China 17. pp. 313–313.
- Katzer, Gernot (May 27, 2008). "Paprika (Capsicum annuum L.)". Retrieved December 1, 2012.
- Organisation for Economic Co-operation and Development (1 July 2006). Safety assessment of transgenic organisms: OECD consensus documents. OECD Publishing. pp. 299–. ISBN 978-92-64-02258-4. Retrieved 25 November 2011.
- Grubben, G.J.H. & Denton, O.A. (2004) Plant Resources of Tropical Africa 2. Vegetables. PROTA Foundation, Wageningen; Backhuys, Leiden; CTA, Wageningen.
- "Capsicum Annuum". Retrieved February 21, 2011.
- "Capsicum annuum "Black Pearl"". U.S. National Arboretum. March 2006. Retrieved February 21, 2011.
- National Center for Biotechnology Information - Capsicum annuum
- PROTAbase on Capsicum annuum
- Texas A&M University