Citrus trifoliata

Citrus trifoliata is a member of the Rutaceae family, commonly known as the trifoliate orange, Japanese bitter-orange, hardy orange or Chinese bitter orange.

Description

The Citrus trifoliata is a deciduous shrub or small tree that grows to about 5–8 m in height. It is notable for its distinctive trifoliate compound leaves, hence the name. The plant is covered with sturdy, sharp spines that can reach up to 3 cm in length. The flowers are white and fragrant, appearing in late spring. The fruit is a bright yellow-orange and is very bitter, making it inedible in its raw form.

Distribution and Habitat

Citrus trifoliata is native to northern China and Korea, and is cultivated in Japan. It is hardy and can tolerate cold temperatures, making it suitable for cultivation in temperate climates. It prefers full sun and well-drained soil.

Uses

Despite its bitterness, the fruit of the Citrus trifoliata is used in traditional Chinese medicine for its purported health benefits. It is also used as a rootstock for other citrus species, as it confers resistance to certain diseases and pests.

Cultivation

Citrus trifoliata is propagated by seeds, which are sown in the spring. The plant is relatively easy to grow and requires little maintenance once established. It is resistant to most common pests and diseases that affect citrus plants.

See Also

• Citrus
• Rutaceae
• Traditional Chinese medicine

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