''Magnolia obovata'', the Japanese cucumber tree,Kayano, S. (2014). ''Ainu Tools''. Biratori: Yuideku Co., Ltd. Japanese bigleaf magnolia, or Japanese whitebark magnolia, is a species of ''

Magnolia ''Magnolia'' is a large genus of about 210 to 340The number of species in the genus ''Magnolia'' depends on the taxonomic view that one takes up. Recent molecular and morphological research shows that former genera ''Talauma'', ''Dugandiodendr ...

'', 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 n ...

and the adjacent

Kurile Islands The Kuril Islands or Kurile Islands (; rus, Кури́льские острова́, r=Kuril'skiye ostrova, p=kʊˈrʲilʲskʲɪjə ɐstrɐˈva; Japanese: or ) are a volcanic archipelago currently administered as part of Sakhalin Oblast in the ...

. It grows at altitudes near sea level up to 1,800 m in mixed broadleaf forests.

Description

It is a medium-sized

deciduous In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, ...

tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are ...

15–30 m tall, with slate grey bark. The

leaves A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, st ...

are large, 16–38 cm (rarely to 50 cm) long and 9–20 cm (rarely 25 cm) broad, leathery, green above, silvery or greyish pubescent below, and with an acute apex. They are held in whorls of five to eight at the end of each shoot. The

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 mechanis ...

s are also large, cup-shaped, 15–20 cm diameter, with 9-12 creamy, fleshy

tepal A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undifferentiated (i.e. of very ...

s, red

stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the fila ...

s; they have a strong scent, and are produced in early summer after the leaves expand. The

fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in partic ...

is an oblong-cylindric aggregate of follicles 12–20 cm long and 6 cm broad, bright pinkish red, each follicle containing one or two black

seed A seed is an embryonic plant enclosed in a protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiosper ...

s with a fleshy orange-red coating.

Uses

The

wood Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin ...

is strong, light, and easy to work, sought by craftsmen. In parts of Japan, the large leaves are used for wrapping food, and also as a makeshift dish to grill meat or vegetables, such as leeks, mushrooms, and miso in ''hoba

miso is a traditional Japanese seasoning. It is a thick paste produced by fermenting soybeans with salt and ''kōji'' (the fungus '' Aspergillus oryzae'') and sometimes rice, barley, seaweed, or other ingredients. It is used for sauces and ...

''.

References

*Hunt, D. (ed). (1998). ''Magnolias and their allies''. International Dendrology Society and Magnolia Society.
Flora of China: Magnoliaceae (draft account)
obovata {{magnoliid-stub