| Diospyros virginiana | |
|---|---|
| Botanical details of buds, flowers and fruit | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Ericales |
| Family: | Ebenaceae |
| Genus: | Diospyros |
| Species: | D. virginiana |
| Binomial name | |
| Diospyros virginiana L. |
|
| Synonyms[1] | |
|
Diospyros mosieri S.F.Blake |
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Diospyros virginiana, commonly called the American persimmon,[1] common persimmon,[2] Eastern persimmon, "'simmon" and "possumwood", is a persimmon species known by a variety of names including. It ranges from New England to Florida, and west to Texas, Louisiana, Oklahoma, and Kansas. The tree grows wild but has been cultivated for its fruit and wood since prehistoric times by Native Americans.
D. virginiana grows to 20 m (66 ft), in well-drained soil. In summer, the tree produces fragrant flowers which are dioecious, so both male and female plants must be grown if seed is required. The flowers are pollinated by insects and wind. Fruiting typically begins when the tree is about six years old.
The fruit is round or oval and usually orange-yellow, ranging to bluish, in color and from 2 to 6 cm (0.79 to 2.4 in) in diameter. In the American South and Midwest, the fruits are referred to as simply persimmons or "'simmons", and are popular in desserts and cuisine.
Commercial varieties include the very productive Early Golden, the productive John Rick, Woolbright, and Miller and the Ennis–seedless variety. Another nickname of the American persimmon, the 'date-plum', actually refers to a variety of persimmon found in South Asia, Diospyros lotus.
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It is a small tree usually thirty to eighty feet (ten to twenty-four meters) in height, with a short, slender trunk and spreading, often pendulous branches, which form sometimes a broad and sometimes a narrow round-topped head. The roots are thick, fleshy and stoloniferous. It is also given to shrubby growth.[3] The tree has oval entire leaves, and unisexual flowers on short stalks. In the male flowers, which are numerous, the stamens are sixteen in number and arranged in pairs; the female flowers are solitary, with traces of stamens, and a smooth ovary with one ovule in each of the eight cells—the ovary is surmounted by four styles, which are hairy at the base. The fruit-stalk is very short, bearing a subglobose fruit an inch in diameter or a bit larger, of an orange-yellow color, ranging to bluish, and with a sweetish astringent pulp. It is surrounded at the base by the persistent calyx-lobes, which increase in size as the fruit ripens. The astringency renders the fruit somewhat unpalatable, but after it has been subjected to the action of frost, or has become partially rotted or "bletted" like a medlar, its flavor is improved.[4]
The tree is very common in the South Atlantic and Gulf states, and attains its largest size in the basin of the Mississippi River.[4] Its habitat is southern, it appears along the coast from New York to Florida; west of the Alleghenies it is found in southern Ohio and along through southeastern Iowa and southern Missouri; when it reaches Louisiana, eastern Kansas and Oklahoma it becomes a mighty tree, one hundred and fifteen feet high.[3]
Its fossil remains have been found in Miocene rocks of Greenland and Alaska and in Cretaceous formations in Nebraska.[3]
The peculiar characteristics of its fruit have made the tree well known. This fruit is a globular berry, with variation in the number of seeds, sometimes with eight and sometimes without any. It bears at its apex the remnants of the styles and sits in the enlarged and persistent calyx. It ripens in late autumn, is pale orange with a red cheek, often covered with a slight glaucous bloom. One joke among Southerners is to induce strangers to taste unripe persimmon fruit, as its very astringent bitterness is shocking to those unfamiliar with it. Folklore states that frost is required to make it edible, but fully ripened fruit lightly shaken from the tree or found on the ground below the tree is sweet, juicy and delicious. The peculiar astringency of the fruit is due to the presence of a tannin similar to that of Cinchona.
The fruit is high in vitamin C. The unripe fruit is extremely astringent. The ripe fruit may be eaten raw, cooked or dried. Molasses can be made from the fruit pulp. A tea can be made from the leaves and the roasted seed is used as a coffee substitute. Other popular uses include desserts such as persimmon pie, persimmon pudding, or persimmon candy.
The fruit is also fermented with hops, cornmeal or wheat bran into a sort of beer or made into brandy. The wood is heavy, strong and very close-grained and used in woodturning.[4]
The tree prefers light, sandy, well-drained soil, but will grow in rich, southern, bottom lands. It can be grown in northern Ohio only with the greatest of care, and in southern Ohio its fruit is never edible until after frost.[3]
The tree is greatly inclined to vary in the character and quality of its fruit, in size this varies from that of a small cherry to a small apple. Some trees in the south produce fruit that is delicious without the action of the frost, while adjoining trees produce fruit that never becomes edible.[3]
It was brought to England before 1629 and is cultivated, but rarely if ever ripens its fruit. It is easily raised from seed and can also be propagated from stolons, which are often produced in great quantity. The tree is hardy in the south of England and in the Channel Islands.[4]
In respect to the power of making heartwood, the locust and persimmon stand at the extreme opposite ends of the list. The locust changes its sapwood into heartwood almost at once, while the persimmon rarely develops any heartwood until it is nearly one hundred years old. This heartwood is extremely close-grained and almost black, resembling ebony (of which it is not a true variety).[3][5]
It is a common misconception persimmon fruit needs frost to ripen and soften. Some, such as the early-ripening varieties "pieper" and "NC21"(also known as "supersweet"), easily lose astringency and become completely free of it when slightly soft at the touch—these are then very sweet, even in the British climate. On the other hand, some varieties (like the very large fruited "yates", which is a late ripening variety) remain astringent even when the fruit has become completely soft (at least in the British climate). Frost, however, destroys the cells within the fruit, causing it to rot instead of ripen. Only completely ripe and soft fruit can stand some frost; it will then dry and become even sweeter (hence the misconception). The same goes for the oriental persimmon (Diospyros kaki), where early frost can severely damage a fruit crop.