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Ficus

life science Maturity 11-13 Next article →

The genus *Ficus* contains about 850 different species of woody plants. These plants include trees, shrubs, vines, and even epiphytes, which are plants that grow on other plants.

Ficus carica tree
Ficus carica tree

Most *Ficus* species are native to tropical regions. Some species can also live in semi-warm temperate zones. While many species produce edible fruit, only two are widely cultivated by humans. The common fig (*F. carica*) is the most important species. The sycamore fig (*F. sycomorus*) is the other major cultivated species.

Ficus watkinsiana 347466253
Ficus watkinsiana 347466253

Many other species are eaten locally as bushfood. Beyond food, figs hold great cultural importance. They are often used for practical purposes or as objects of worship.

Most figs are characterized by a unique structure called a syconium. A syconium is an urn-shaped inflorescence, which is a cluster of flowers. It is not a true fruit but a fleshy stem. This stem encloses many tiny flowers on its inner surface. The flowers are accessible only through a small opening at the top called an ostiole. The ostiole is lined with small scales called bracts. Inside, male flowers are usually near the ostiole. Female flowers occupy the rest of the interior surface.

This structure creates a complex environment for reproduction.

Pollination in *Ficus* is a highly specialized process. It relies on tiny wasps from the family Agaonidae. This relationship is a form of mutualism. In mutualism, both the plant and the wasp benefit from working together. A wasp enters the syconium through the ostiole to lay its eggs. As it moves, it carries pollen to the female flowers. Once pollen lands on a stigma, it grows a pollen tube to reach the ovule. After fertilization, each ovule becomes a tiny, one-seeded fruitlet. These fruitlets then grow into the fleshy mass we recognize as a fig.

Animals later eat the fruit and disperse the seeds.

*Ficus* species can be classified by how they handle male and female flowers. Some are monoecious, meaning male and female flowers exist in the same syconium. Others are gynodioecious, where the sexes are on different trees. In gynodioecious species, male trees have short-styled female flowers. Female trees only have long-styled female flowers. The long styles prevent wasps from laying eggs in the ovules. This ensures the tree produces seeds. This complex system helps maintain the population through both sexual and vegetative reproduction.

Ficus-AerialRoot
Ficus-AerialRoot

Humans often use grafting or cuttings to grow seedless varieties.

There is incredible diversity in how *Ficus* plants grow. The Indian banyan (*F. benghalensis*) uses adventitious roots for support. These roots allow it to cover over one hectare, or 2.5 acres. In contrast, *F. nana* in New Guinea stays under one meter tall.

菩提樹 Ficus religiosa 20210421111446 01
菩提樹 Ficus religiosa 20210421111446 01

Most of the 881 accepted species live in the Indo-Australasian region. There are about 511 species in this area. Southeast Asia, New Guinea, and Borneo are centers of high diversity. About 132 species are found in the Neotropical region. This wide range shows how well they adapt to different niches.

Figs are considered keystone species in tropical ecosystems. A keystone species is one that is vital to the survival of many others. Their fruit provides food for fruit bats, monkeys, and many birds. Species like pigeons and hornbills may rely almost entirely on figs.

Even insects rely on them. Many caterpillars, such as the giant swallowtail, feed on fig leaves. Some beetles, like the citrus long-horned beetle, feed on the wood. This makes figs a central part of the food web. Without them, many animals would struggle to survive.

Scientists have studied the history of *Ficus* classification for centuries. Carl Peter Thunberg first divided the genus by leaf shape in 1786. In 1867, Friedrich Miquel grouped them into one single genus. Later, E. J. H. Corner reorganized them in 1965 based on breeding systems. Modern scientists now use genetic methods to study their relationships. These studies look at how species evolved alongside their wasp pollinators. This process is known as coevolution. It explains why so many fig species have a specific, one-to-one relationship with a specific wasp.

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🖼️ Images & Media (6)
File:Ficus-AerialRoot.jpg
Ficus-AerialRoot.jpg
File:Ficus carica tree.jpg
Ficus carica tree.jpg
File:菩提樹 Ficus religiosa 20210421111446 01.jpg
菩提樹 Ficus religiosa 20210421111446 01.jpg
File:Ficus benjamina 93736245.jpg
Ficus benjamina 93736245.jpg
File:Ficus watkinsiana 347466253.jpg
Ficus watkinsiana 347466253.jpg
File:Ficus exasperata by kadavoor.jpg
Ficus exasperata by kadavoor.jpg
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