Tuesday, April 20, 2010

Orange (fruit)

An orange—specifically, the sweet orange—is the citrus Citrus ×​sinensis (syn. Citrus aurantium L. var. dulcis L., or Citrus aurantium Risso) and its fruit. The orange is a hybrid of ancient cultivated origin, possibly between pomelo (Citrus maxima) and tangerine (Citrus reticulata) [2]. It is a small flowering tree growing to about 10 m tall with evergreen leaves, which are arranged alternately, of ovate shape with crenulate margins and 4–10 cm long. The orange fruit is a hesperidium, a type of berry.

Orange blossoms and oranges on tree
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Sapindales
Family: Rutaceae
Genus: Citrus
Species: C. ×sinensis
Binomial name
Citrus ×sinensis

Oranges originated in Southeast Asia. The fruit of Citrus sinensis is called sweet orange to distinguish it from Citrus aurantium, the bitter orange. The name is thought to ultimately derive from the Sanskrit[3][4] for the orange tree, with its final form developing after passing through numerous intermediate languages.

In a number of languages, it is known as a "Chinese apple" (e.g. Dutch Sinaasappel, "China's apple

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