Japanese Chestnut

Names and Synonyms

Common Names

• Japanese Chestnuts

Scientific Names

Accepted name

Synonyms

• Castanea japonica var. crenata
• Castanea vulgaris var. kusakuri
• Castanea pubinervis
• Castanea crenata var. caudata
• Castanea crenata var. dulcis
• Castanea crenata var. pulchella
• Castanea crenata var. kawasei
• Castanea japonica
• Castanea crenata f. gigantea
• Castanea crenata var. femina
• Castanea crenata subvar. bournetii
• Castanea crenata var. imperfecta
• Castanea crenata var. canescens
• Castanea crenata var. elongata
• Castanea crenata var. pleiocarpa
• Castanea crenata var. japonica
• Castanea crenata var. syakacephala
• Castanea crenata var. kusakuri
• Castanea crenata var. longispina
• Castanea crenata var. obtexta
• Castanea crenata var. ookasi
• Castanea crenata f. femina
• Castanea sativa var. pendula
• Castanea crenata f. imperfecta
• Castanea crenata var. quercina
• Castanea crenata f. pleiocarpa
• Castanea crenata var. siba-kuri
• Castanea crenata f. pulchella
• Castanea crenata var. stricta
• Castanea crenata f. syakacephala
• Castanea crenata var. tamba
• Castanea crenata f. pendula
• Castanea chinensis
• Castanea japonica var. canescens
• Castanea japonica var. elongata
• Castanea japonica var. kusakuri
• Castanea japonica var. longispina
• Castanea japonica var. obtexta
• Castanea japonica var. ookasi
• Castanea japonica var. quercina
• Castanea japonica var. siba-kuri
• Castanea japonica var. stricta
• Castanea vulgaris var. elongata
• Castanea vulgaris var. japonica
• Castanea vulgaris var. subdentata
• Castanea sativa var. pubinervis
• Castanea stricta
• Castanea kusakuri
• Castanea sativa var. japonica
• Castanea pubinervis var. pendula
• Castanea crenata var. pendula

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. Within the order Fagales and the family Fagaceae, it is classified under the genus Castaenea. Specifically, Castaenea crenata represents a unique species within this botanical hierarchy.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a wide geographical distribution that spans across both Europe and Asia. In Southwestern Europe, it can be found growing in the regions of Portugal and Spain. Its presence extends into Southeastern Europe, specifically within the borders of Italy. Moving toward Eastern Asia, the species is naturally established in Japan. Finally, the distribution reaches Korea, completing its range across these diverse continental territories.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Castanea crenata is characterized by its existence as a perennial species, ensuring its presence in the ecosystem over many successive years. As a phanerophyte, the plant maintains its photosynthetic organs at a significant height above the ground, a structural adaptation that defines its growth habit. Its seasonal cycle is marked by being deciduous, meaning it sheds its foliage annually, typically in response to changing environmental conditions or temperature shifts. This combination of a long-lived perennial lifecycle, a phanerophyte life form, and a deciduous nature dictates its rhythmic patterns of growth, dormancy, and seasonal transformation within its natural habitat.

Deciduousness :

deciduous

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Castanea crenata is characterized by its stature as a large, woody tree that typically reaches a mean height of approximately 15 meters. As a terrestrial species, it grows independently in its environment without being aquatic or an epiphyte, and it functions as a self-supporting organism rather than a climber, liana, or vine. It does not exhibit parasitic behavior, maintaining an independent growth habit. The plant's structural integrity is defined by its woody nature, establishing a robust growth form consistent with its classification as a tree.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height mean:

15 m

Woodiness :

woody

Physiology

The physiology of Castanea crenata is characterized by a C3 photosynthetic pathway, a common metabolic strategy that allows the plant to fix carbon dioxide through the Calvin cycle. Its vegetative structure is defined by specific foliar dimensions, where the leaves exhibit a variable morphology with a mean length of 12 cm, ranging from a minimum of 8 cm to a maximum of 16 cm. The width of the leaves is similarly variable, maintaining a mean width of 3.75 cm, with measurements spanning from a minimum of 3 cm to a maximum of 4.5 cm.

Leaf length max:

16 cm

Leaf length mean:

12 cm

Leaf length min:

8 cm

Leaf width max:

4.5 cm

Leaf width mean:

3.75 cm

Leaf width min:

3 cm

Photosynthetic pathway :

C3

Reproduction

The reproduction of Castanea crenata is characterized by its specific inflorescence and fruit development patterns. The plant produces inflorescences that range in length from a minimum of 0.07 m to a maximum of 0.2 m. Following pollination, the development of the fruit shows notable variation in dimensions, with fruit lengths ranging from a minimum of 4 cm to a maximum of 5.5 cm (averaging 4.75 cm) and fruit widths spanning from 5 cm to a maximum of 6 cm (averaging 5.5 cm), ultimately resulting in a dry fruit texture. The resulting seeds are substantial in size and weight; seed mass varies from a minimum of 10.9 g to a maximum of 30.303 g, with a mean mass of approximately 20.5856225 g. Furthermore, the seed volume is highly consistent, recorded at a mean and range of 27,000 mm³, where the minimum and maximum values both reach this 27,000 mm³ threshold.

Fruit dryness :

dry

Fruit length max:

5.5 cm

Fruit length mean:

4.75 cm

Fruit length min:

4 cm

Fruit width max:

6 cm

Fruit width mean:

5.5 cm

Fruit width min:

5 cm

Inflorescence length max:

0.2 m

Inflorescence length min:

0.07 m

Seed mass max:

30.303 g

Seed mass mean:

20.5856225 g

Seed mass min:

10.9 g

Seed volume max:

27000 mm³

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Castanea crenata has 2 reported plant parts identified across 2 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include flower, leaf.

Flower

1. Antioxidants (Basel, Switzerland)

Leaf

1. Antioxidants (Basel, Switzerland)

Chemicals

Castanea crenata has 10 reported phytochemicals identified across 2 scientific publications and several other databases. The most consistently reported chemicals include CATECHIN, Ellagic, Ellagitannins, Flavonoid, Flavonoids.

CATECHIN

1. Antioxidants (Basel, Switzerland)

Ellagic

1. Antioxidants (Basel, Switzerland)

Ellagitannins

1. Biomolecules

Flavonoid

1. Antioxidants (Basel, Switzerland)

Flavonoids

1. Biomolecules

Gallic acid

1. Antioxidants (Basel, Switzerland)

Isoquercitrin

1. Antioxidants (Basel, Switzerland)

RUTIN

1. Antioxidants (Basel, Switzerland)

Tannin

1. Antioxidants (Basel, Switzerland)

myricetin

1. Antioxidants (Basel, Switzerland)

Conditions

Castanea crenata has 3 reported investigations on conditions identified across 2 scientific publications and several other databases. The most consistently reported conditions include blood circulation, diarrhea, digestion.

Blood circulation

1. Biomolecules

Diarrhea

1. Biomolecules

Digestion

1. Biomolecules

Preparations

Castanea crenata has 6 reported preparations identified across 2 scientific publications and several other databases. The most consistently reported preparations include barks, flowers, inner skin extract, inner skins, kernels.

Barks

1. Antioxidants (Basel, Switzerland)

Flowers

1. Antioxidants (Basel, Switzerland)

Inner skin extract

1. Antioxidants (Basel, Switzerland)

Inner skins

1. Antioxidants (Basel, Switzerland)

Kernels

1. Antioxidants (Basel, Switzerland)

Leaves

1. Antioxidants (Basel, Switzerland)