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Citrus is a genus of flowering trees and shrubs in the family Rutaceae. Plants in the genus produce citrus fruits, including important crops such as oranges, mandarins, lemons, grapefruits, pomelos, and limes. Citrus is native to South Asia, East Asia, Southeast Asia, Melanesia, and Australia. Indigenous people in these areas have used and ...
Citrus myrtifolia, the myrtle-leaved orange tree, is a species of Citrus with foliage similar to that of the common myrtle. It is a compact tree with small leaves and no thorns which grows to a height of 3 m (10 ft) and can be found in Malta , Libya , the south of France , and Italy (primarily in Liguria , typically Savona , and also in Tuscany ...
Citrus medica is a slow-growing shrub or small tree that reaches a height of about 8 to 15 ft (2 to 5 m). It has irregular straggling branches and stiff twigs and long spines at the leaf axils. The evergreen leaves are green and lemon-scented with slightly serrate edges, ovate-lanceolate or ovate elliptic 2.5 to 7.0 inches long.
Initially, many citrus types were identified and named by individual taxonomists, resulting in a large number of identified species: 870 by a 1969 count. [18] Some order was brought to citrus taxonomy by two unified classification schemes, those of Chōzaburō Tanaka and Walter Tennyson Swingle, that can be viewed as extreme alternative visions of the genus.
Citrus production is often cut short in many areas by outbreaks of bacteria known as Xanthomonas axonopodis, or citrus canker, which cause unsightly lesions on all parts of the plant, affecting tree vitality and early drop of fruit. While not harmful to human consumption, the fruit becomes too unsightly to be sold, and entire orchards are often ...
The Rutaceae (/ r uː ˈ t eɪ s i ˌ aɪ,-s iː ˌ iː /) is a family, commonly known as the rue [3] or citrus family, [4] of flowering plants, usually placed in the order Sapindales. Species of the family generally have flowers that divide into four or five parts, usually with strong scents. They range in form and size from herbs to shrubs ...
The following is a list of diseases in citrus plants. Bacterial diseases. Bacterial diseases; Bacterial spot Xanthomonas euvesicatoria pv. citrumelo: Black pit (fruit)
Calamansi, Citrus x microcarpa, is a shrub or small tree growing to 3–6 m (10–20 ft). The plant is characterized by wing-like appendages on the leaf petioles and white or purplish flowers. The fruit of the calamansi resembles a small, round lime, usually 25–35 mm (1– 1 + 3 ⁄ 8 in) in diameter, but sometimes up to 45 mm (1 + 3 ⁄ 4 in).