Seville orange is an citrus tree with fragrant white flowers and fruit with a thick, aromatic peel and sour, bitter pulp. The fruit is used to make traditional marmalade. Seville orange is also called bitter orange.

Appearance

Growth form
This evergreen tree can grow to about 30 ft (9 m).
Leaves
The dark green leaves are aromatic. The leaf stalks often have broad wings.
Flowers
Large, fragrant white flowers grow alone or in small groups.
Fruit
The round fruit has a thick, rough orange peel. The pulp tastes sour and bitter.

Look-alikes

hardy orangeCitrus trifoliata

Hardy orange has leaves divided into three leaflets and drops them in fall. Seville orange keeps its single leaves through winter.

Why they get mixed upBoth bear round citrus fruit and have thorny branches.

mandarin orangeCitrus reticulata

A ripe Seville orange has a thick, rough peel; mandarins are usually easier to peel. A leaf-only photo may not settle the difference.

Why they get mixed upBoth have glossy citrus foliage and orange fruit.

Where it lives

Typical habitats
  • old home sites
  • woodlands in peninsular Florida
Range
It is introduced in Florida, where it grows in cultivation and has escaped into parts of the peninsula.

Name and classification

About the name
Some citrus classifications place sweet oranges, grapefruit, and clementines within Citrus × aurantium. In everyday English, Seville orange usually means the sour form.

Conservation

IUCN Red List
NENot EvaluatedNot yet assessed

Culture and stories

Culture and stories
  • Florida growers have used sour orange as for other citrus trees.
  • Its peel and tart fruit are also used for liqueurs.
Seville Orange (Citrus × aurantium) — identification, habitat & look-alikes | Moeyo