''Kadsura japonica'', commonly known as the kadsura vine or simply kadsura, is a plant

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

native to

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

(

Honshū , historically called , is the largest and most populous island of Japan. It is located south of Hokkaidō across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyūshū across the Kanmon Straits. The island separa ...

Kyūshū is the third-largest island of Japan's five main islands and the most southerly of the four largest islands ( i.e. excluding Okinawa). In the past, it has been known as , and . The historical regional name referred to Kyushu and its surround ...

and the

Ryukyu Islands The , also known as the or the , are a chain of Japanese islands that stretch southwest from Kyushu to Taiwan: the Ōsumi, Tokara, Amami, Okinawa, and Sakishima Islands (further divided into the Miyako and Yaeyama Islands), with Yonaguni ...

) in

woodland A woodland () is, in the broad sense, land covered with trees, or in a narrow sense, synonymous with wood (or in the U.S., the ''plurale tantum'' woods), a low-density forest forming open habitats with plenty of sunlight and limited shade (see ...

s. The larvae of the moth '' Caloptilia kadsurae'' feed on ''K. japonica'' in the main Japanese islands and

Description

''Kadsura japonica'' is a cultivated,

dioecious Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproductio ...

ornamental plant Ornamental plants or garden plants are plants that are primarily grown for their beauty but also for qualities such as scent or how they shape physical space. Many flowering plants and garden varieties tend to be specially bred cultivars that i ...

in gardens, with edible fruits that can be eaten raw or cooked. It grows from to . It is an

evergreen In botany, an evergreen is a plant which has foliage that remains green and functional through more than one growing season. This also pertains to plants that retain their foliage only in warm climates, and contrasts with deciduous plants, which ...

with deep green, glossy leaves that turn slightly red in autumn. Its fruits are very bright scarlet and it has white, unisexual

flower A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechani ...

s. This plant contains 1–3 seeds. The apex is acuminate. The leaves are

variegated Variegation is the appearance of differently coloured zones in the leaves and sometimes the stems and fruit of plants. Species with variegated individuals are sometimes found in the understory of tropical rainforests, and this habitat is the s ...

, shiny green and irregularly edged in white. The flowers are cup shaped and have red berries in spring. The petioles are 0.6–2.3 cm long. 5–8 secondary veins can be found on each midvein in the leaves. In common with other plants in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Schisandraceae Schisandraceae is a family of flowering plants with 3 known genera and a total of 92 known species. Such a family has been recognized by most taxonomists, at least for the past several decades. Before that, the plants concerned were assigned to f ...

, this species can be

monoecious Monoecy (; adj. monoecious ) is a sexual system in seed plants where separate male and female cones or flowers are present on the same plant. It is a monomorphic sexual system alongside gynomonoecy, andromonoecy and trimonoecy. Monoecy is conne ...

although it is often reported as

, and may change sex expressions over time.

Taxonomy

''Kadsura japonica'' was one of the many species first described by

Linnaeus Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the ...

in the 10th edition of his ''

Systema Naturae ' (originally in Latin written ' with the ligature æ) is one of the major works of the Swedish botanist, zoologist and physician Carl Linnaeus (1707–1778) and introduced the Linnaean taxonomy. Although the system, now known as binomial nomen ...

'' in 1759, originally as ''Uvaria japonica''. ''Kadsura'' is one of the three genera of the family

. It contains 22 species.

Distribution and habitat

It is found in the tropical and subtropical habitats and can be grown as an indoor plant. This plant is found in Japan, southern China, southern Korea and eastern Asia. It can be in habitats such as

woodland garden A woodland garden is a garden or section of a garden that includes large trees and is laid out so as to appear as more or less natural woodland, though it is often actually an artificial creation. Typically it includes plantings of flowering shrub ...

, found in both the sun and shade. It grows in a moderate and fertile soil. It needs a neutral or acidic soil, that is adaptable and well-drained. This plant mostly does not need bright sunlight. In autumn, the shoot of the plant becomes very long and forms layers. It is a climber on woodland trees. It is found at an elevation of 500–2000 m in some provinces of China, Fujian and Taiwan.

Uses

Fruit from this plant is edible and is eaten either raw or cooked. Material extracted from this plant is used for hair dressing. Extracts from this plant are also used for traditional Japanese

washi is traditional Japanese paper. The term is used to describe paper that uses local fiber, processed by hand and made in the traditional manner. ''Washi'' is made using fibers from the inner bark of the gampi tree, the mitsumata shrub (''Ed ...

paper making.

References

External links

pfaf.org: ''Kadsura matsudai'' (''Kadsura japonica'')
{{Taxonbar, from=Q1441971 japonica Endemic flora of Japan Flora of the Ryukyu Islands Garden plants of Asia Plants described in 1753 Taxa named by Carl Linnaeus