Japanese Bitter-orange

Names and Synonyms

Common Names

• Japanese Bitter-orange
• hardy-orange
• trifoliate-orange
• Chinese bitter orange
• Japanese bitter orange
• hardy orange
• trifoliate orange
• Trifoliate-Leaved Orange

Scientific Names

Accepted name

Synonyms

• Pseudaegle trifoliata
• Pseudaegle sepiaria
• Poncirus trifoliata
• Bilacus trifoliata
• Poncirus trifoliata f. monstrosa
• Citrus trifoliata subf. monstrosa
• Poncirus trifoliata var. monstrosa
• Aegle sepiaria
• Citrus trifolia
• Citrus trifoliata var. monstrosa
• Citrus triptera

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and the class Equisetopsida. Within the subclass Magnoliidae, it falls under the order Sapindales and the family Rutaceae. Finally, it is categorized under the genus Citrus.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical range that spans across multiple regions of Asia and Europe. In Southeastern Europe, its presence is documented within the borders of Bulgaria and Romania. Moving eastward into Central Asia, the species can be found inhabiting Tajikistan and Uzbekistan. Furthermore, the plant has a significant distribution within China, specifically located in the South-Central region. Together, these locations highlight the diverse environmental habitats where the species thrives.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Citrus trifoliata is characterized by its presence in low-lying terrains, specifically thriving within an elevational range of 0 to 100 m AMSL. This species is commonly found inhabiting anthropogenically influenced environments, frequently colonizing disturbed sites such as crop fields and roadsides.

Elevational range max:

100 m AMSL

Elevational range min:

0 m AMSL

Habitat :

crop fields, roadsides

Life history

The life history of Citrus trifolia is characterized by its nature as a perennial plant, allowing it to persist through multiple growing seasons and establish a long-term presence in its habitat. As a perennial species, it does not complete its life cycle in a single year or two but rather undergoes continuous developmental stages, including vegetative growth, flowering, and fruiting, over many years. This lifecycle enables the plant to accumulate biomass and invest energy into robust woody structures, which support its reproductive efforts across successive seasons. Throughout its lifespan, the plant undergoes periodic cycles of seasonal growth, often influenced by environmental moisture and temperature, ensuring its long-term survival and ability to produce seeds for the continuation of its lineage.

Lifecycle :

perennial

Morphology

The morphology of Citrus trifoliata is characterized by its robust and woody structure, typically exhibiting a growth form that ranges from a large shrub to a small tree. As a terrestrial species, it does not exhibit aquatic or semiaquatic tendencies, nor does it function as an epiphyte, instead maintaining a self-supporting habit without the need for climbing mechanisms. The plant is an independent organism, lacking any parasitic nature, and relies on its well-developed woody tissues to provide the necessary structural integrity for its upright growth.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Growth form :

shrub

Parasite :

independent

Woodiness :

woody

Physiology

The physiology of Citrus trifoliata is characterized by a specialized metabolic framework designed to support its growth in varied environmental conditions. A fundamental aspect of its metabolic function is its photosynthetic pathway, which follows the C3 mechanism. Through this C3 pathway, the plant utilizes the enzyme Rubisco to fix atmospheric carbon dioxide directly during the Calvin cycle, typically occurring within the mesophyll cells. This process is central to the plant's energy production and carbon assimilation, dictating its water-use efficiency and gas exchange patterns. The physiological efficiency of this C3 system influences the plant's overall transpiration rates and its ability to manage carbohydrate synthesis under different light intensities and temperature fluctuations.

Photosynthetic pathway :

C3

Reproduction

The reproduction of Citrus trifoliata is characterized by a specific flowering window and distinct seed characteristics. The flowering period typically begins in March and concludes in April, although the species exhibits a variable flowering cycle that can encompass various months throughout the year. Following pollination, the plant produces seeds with a highly consistent mass; the seed mass is measured at a mean, minimum, and maximum value of 0.14085 g, indicating a uniform seed size during the reproductive phase.

Flowering time :

Mar

Flowering time :

Apr

Seed mass mean:

0.14085 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Citrus trifoliata has 2 reported plant parts identified across 3 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include fruit, leaf.

Fruit

1. Heliyon
2. Biological & pharmaceutical bulletin

Leaf

1. Scientific reports

Chemicals

Citrus trifoliata has 18 reported phytochemicals identified across 3 scientific publications and several other databases. The most consistently reported chemicals include Coumarins, Poncirin, Triphasiol, 21Alpha-Methylmelianodiol, 5,7-Dihydroxy-4'-methoxyflavanone.

Coumarins

1. Heliyon
2. Journal of natural products

Poncirin

1. Biological & pharmaceutical bulletin
2. Endocrine, metabolic & immune disorders drug targets

Triphasiol

1. Heliyon
2. Journal of natural products

21Alpha-Methylmelianodiol

1. European journal of pharmacology

5,7-Dihydroxy-4'-methoxyflavanone

1. Biological & pharmaceutical bulletin

Auraptene

1. Heliyon

Furocoumarins

1. Heliyon

IMPERATORIN

1. Heliyon

Limonin

1. Heliyon

Myrsellin

1. Heliyon

Activities

Citrus trifoliata has 3 reported activities identified across 3 scientific publications and several other databases. The most consistently reported activities include Anticancer, Antiproliferative, Cytotoxic.

Anticancer

1. Heliyon

Antiproliferative

1. Heliyon

Cytotoxic

1. Heliyon

Conditions

Citrus trifoliata has 2 reported investigations on conditions identified across 3 scientific publications and several other databases. The most consistently reported conditions include cancer, gastrointestinal disorders.

Cancer

1. Heliyon

Gastrointestinal disorders

1. Heliyon

Preparations

Citrus trifoliata has 7 reported preparations identified across 3 scientific publications and several other databases. The most consistently reported preparations include epicotyls, ethyl extract fraction, extracts, leaves, peel.

Epicotyls

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Ethyl extract fraction

1. Journal of environmental biology

Extracts

1. Archives of pharmacal research

Leaves

1. Scientific reports

Peel

1. Heliyon

Seeds

1. Heliyon

Water extract of the fruits

1. Biological & pharmaceutical bulletin