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Trifoliate orange

 
Trifoliate Orange

 
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Trifoliate orange
 
 
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Trifoliate Orange (Poncirus trifoliata, syn. Citrus trifoliata) is a member of the family Rutaceae
Rutaceae

Rutaceae, commonly known as the Rue or Citrus family, is a family of 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....
, closely related to Citrus
Citrus

Citrus is a common term and genus of flowering plants in the family Rutaceae, originating in tropical and subtropical southeast regions of the world....
, and sometimes included in that genus, being sufficiently closely related to allow it to be used as a rootstock
Rootstock

A rootstock is a plant, and sometimes just the stump, which already has an established, healthy root, used for grafting a cutting or budding from another plant....
 for Citrus. It differs from Citrus in having deciduous, compound leaves
Leaf

In botany, a leaf is an above-ground plant Organ specialized for photosynthesis. For this purpose, a leaf is typically flat and thin, to expose the cells containing chloroplast to light over a broad area, and to allow light to penetrate fully into the tissues....
, and pubescent (downy) fruit. It is native to northern China
China

China is a Culture of China, an ancient civilization, and, depending on perspective, a national or multinational entity extending over a large area in East Asia....
 and Korea
Korea

Korea is a geographic area composed of two sovereign countries, a civilization, and a former state situated on the Korean Peninsula in East Asia....
, and is also known as the Chinese Bitter Orange.

The plant is fairly hardy (USDA zone 5) and will tolerate moderate frost and snow, making a large shrub
Shrub

A shrub or bush is a horticulture rather than strictly Botany category of woody plant, distinguished from a tree by its multiple stems and lower height, usually less than 5-6 m tall....
 or small tree
TREE

TREE was a Boston hardcore punk band formed in the summer of 1990. They were active in the Boston music scene until disbanding in 2002....
 4-8 m tall.






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Trifoliate Orange (Poncirus trifoliata, syn. Citrus trifoliata) is a member of the family Rutaceae
Rutaceae

Rutaceae, commonly known as the Rue or Citrus family, is a family of 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....
, closely related to Citrus
Citrus

Citrus is a common term and genus of flowering plants in the family Rutaceae, originating in tropical and subtropical southeast regions of the world....
, and sometimes included in that genus, being sufficiently closely related to allow it to be used as a rootstock
Rootstock

A rootstock is a plant, and sometimes just the stump, which already has an established, healthy root, used for grafting a cutting or budding from another plant....
 for Citrus. It differs from Citrus in having deciduous, compound leaves
Leaf

In botany, a leaf is an above-ground plant Organ specialized for photosynthesis. For this purpose, a leaf is typically flat and thin, to expose the cells containing chloroplast to light over a broad area, and to allow light to penetrate fully into the tissues....
, and pubescent (downy) fruit. It is native to northern China
China

China is a Culture of China, an ancient civilization, and, depending on perspective, a national or multinational entity extending over a large area in East Asia....
 and Korea
Korea

Korea is a geographic area composed of two sovereign countries, a civilization, and a former state situated on the Korean Peninsula in East Asia....
, and is also known as the Chinese Bitter Orange.

The plant is fairly hardy (USDA zone 5) and will tolerate moderate frost and snow, making a large shrub
Shrub

A shrub or bush is a horticulture rather than strictly Botany category of woody plant, distinguished from a tree by its multiple stems and lower height, usually less than 5-6 m tall....
 or small tree
TREE

TREE was a Boston hardcore punk band formed in the summer of 1990. They were active in the Boston music scene until disbanding in 2002....
 4-8 m tall. Because of the relative hardiness of Poncirus, citrus grafted onto it are usually hardier than when grown on their own roots.

Poncirus is recognisable by the large 3-5 cm spines on the shoots, and its deciduous leaves with three (or rarely, five) leaflets, typically with the middle leaflet 3-5 cm long, and the two side leaflets 2-3 cm long. The flowers are white, with pink stamens, 3-5 cm in diameter, larger than those of true citrus but otherwise closely resembling them, except that the scent is much less pronounced than with true citrus. As with true citrus, the leaves give off a spicy smell when crushed.

The fruits are green, ripening to yellow, and 3-4 cm in diameter, resembling a small orange
Orange (fruit)

An orange?specifically, the sweet orange?is the citrus Citrus sinensis and its fruit. The orange is a Hybrid of ancient cultivated origin, possibly between pomelo and tangerine ....
, but with a finely downy surface. They are very bitter, not edible fresh, but can be made into marmalade
Marmalade

Marmalade is a fruit fruit preserves usually made of citrus fruits. British-style marmalade is sweet marmalade with a bitter tang made from fruit, sugar, water, zest and a gelling agent....
; and when dried and powdered, they can be used as a condiment.

The cultivar
Cultivar

A cultivar is a cultivated plant that has been selected and given a unique name because of its decorative or useful characteristics; it is usually distinct from similar plants and when Plant propagation it retains those characteristics....
 "Flying Dragon" has highly twisted, contorted stems.

See also

  • Citrange
    Citrange

    The citrange is a Hybrid of the orange and the trifoliate orange. The purpose of this cross was to attempt to create a cold-hardy citrus tree with delicious fruit....