Buttress roots, also known as plank roots, are large, wide roots on all sides of a shallowly rooted tree. Typically, they are found in nutrient-poor tropical forest soils that may not be very deep. They may prevent the tree from falling over (hence the name buttress).
Buttresses are tension elements, being larger on the side away from the stress of asymmetrical canopies. [1] The roots may intertwine with buttress roots from other trees and create an intricate mesh, which may help support trees surrounding it. They can grow up to 30 feet (9 m) tall, spread for 100 ft (30 m) above the soil, and then continue another 100 feet below. When the roots spread horizontally, they are able to cover a wider area for collecting nutrients. They stay near the upper soil layer because all the main nutrients are found there. [2]
Buttress roots vary greatly in size from barely discernable to many square yards (square meters) of surface. The largest for which there is photographic evidence is a Moreton Bay Fig ( Ficus macrophylla ) at Fig Tree Pocket (an outlying district of Brisbane, Queensland) which was photographed in 1866 with an adult man. The buttresses were 40 to 50 ft (12 to 15 m) long and 35 to 40 ft (11 to 12 m) in height. [3] Halfway out the buttress is twice the height of the man. The tree died in 1893 from flood damage.
The tallest buttresses are those of Huberodendron (Bombacaceae) of the Amazon basin which extend up to 70 ft (21 m) up a tree about 145 ft (44 m) in height. [4]
The most extensive buttresses are those of the Kapok, or Silk Cotton Tree ( Ceiba pentandra ), of the Neotropics and tropical Africa. The buttresses can extend outwards as much as 65 ft (20 m) from the tree as buttresses, then continue as superficial roots for a total of 165 ft (50 m). [5]
Ceiba pentandra is a tropical tree of the order Malvales and the family Malvaceae, native to Mexico, Central America and the Caribbean, northern South America, and West Africa. A somewhat smaller variety has been introduced to South and Southeast Asia, where it is cultivated.
Ceiba is a genus of trees in the family Malvaceae, native to tropical and subtropical areas of the Americas and tropical West Africa. Some species can grow to 70 m (230 ft) tall or more, with a straight, largely branchless trunk that culminates in a huge, spreading canopy, and buttress roots that can be taller than a grown person. The best-known, and most widely cultivated, species is Kapok, Ceiba pentandra, one of several trees known as kapok. Ceiba is a word from the Taíno language meaning "boat" because Taínos use the wood to build their dugout canoes.
Ficus benghalensis, or Ficus indica commonly known as the banyan, banyan fig and Indian banyan, is a tree native to the Indian Subcontinent. Specimens in India are among the largest trees in the world by canopy coverage. It is also known as a "strangler fig" because like many other trees in the genus Ficus it starts out as epiphyte, that is, leaning on another tree that it ends up suffocating.
Ficus macrophylla, commonly known as the Moreton Bay fig or Australian banyan, is a large evergreen banyan tree of the Mulberry Family (Moraceae) native to eastern Australia, from the Wide Bay–Burnett region in the north to the Illawarra in New South Wales, as well as Lord Howe Island where the subspecies F. m. columnaris is a banyan form covering 2.5 acres or more of ground. Its common name is derived from Moreton Bay in Queensland, Australia. It is best known for its imposing buttress roots.
Ficus rubiginosa, the rusty fig or Port Jackson fig, is a species of flowering plant native to eastern Australia in the genus Ficus. Beginning as a seedling that grows on other plants (hemiepiphyte) or rocks (lithophyte), F. rubiginosa matures into a tree 30 m (100 ft) high and nearly as wide with a yellow-brown buttressed trunk. The leaves are oval and glossy green and measure from 4 to 19.3 cm long and 1.25 to 13.2 cm wide.
Aerial roots are roots growing above the ground. They are often adventitious, i.e. formed from nonroot tissue. They are found in diverse plant species, including epiphytes such as orchids (Orchidaceae), tropical coastal swamp trees such as mangroves, banyan figs, the warm-temperate rainforest rata, and pohutukawa trees of New Zealand. Vines such as common ivy and poison ivy also have aerial roots.
Ficus microcarpa, also known as Chinese banyan, Malayan banyan, Indian laurel, curtain fig, or gajumaru (ガジュマル), is a tree in the fig family Moraceae. It is native in a range from China through tropical Asia and the Caroline Islands to Australia. It is widely planted as a shade tree.
Strangler fig is the common name for a number of tropical and subtropical plant species in the genus Ficus, including those that are commonly known as banyans.
Ficus elastica, the rubber fig, rubber bush, rubber tree, rubber plant, or Indian rubber bush, Indian rubber tree, is a species of flowering plant in the family Moraceae, native to eastern parts of South and Southeast Asia. It has become naturalized in Sri Lanka, the West Indies, and the US state of Florida. Despite its common names, it is not used in the commercial production of natural rubber.
Curtain Fig Tree is a heritage-listed tree at Curtain Fig Tree Road, East Barron near Yungaburra, Tablelands Region, Queensland, Australia. It is one of the largest trees in Tropical North Queensland, Australia, and one of the best known attractions on the Atherton Tableland. It was added to the Queensland Heritage Register on 3 December 2009.
Koompassia excelsa is an emergent tropical rainforest tree species in the family Fabaceae. It is found in Indonesia, Brunei, Malaysia, the Philippines, and Thailand. It is one of the tallest tropical tree species: the tallest measured specimen is 85.8 m or 88 m(281 or 289 ft) tall.
Alto Purús National Park is a national park in the Amazon rainforest of Peru, established in 2004. It covers an area of 2,510,694.41 ha (9,693.85 sq mi) in the provinces of Purús (Ucayali), Tahuamanu and Tambopata.
A fig tree is any of about 850 species of woody trees in the genus Ficus.
Ficus obliqua, commonly known as the small-leaved fig, is a tree in the family Moraceae, native to eastern Australia, New Guinea, eastern Indonesia to Sulawesi and islands in the southwestern Pacific Ocean. Previously known for many years as Ficus eugenioides, it is a banyan of the genus Ficus, which contains around 750 species worldwide in warm climates, including the edible fig. Beginning life as a seedling, which grows on other plants (epiphyte) or on rocks (lithophyte), F. obliqua can grow to 60 m (200 ft) high and nearly as wide with a pale grey buttressed trunk, and glossy green leaves.
Pleistodontes froggatti is a species of fig wasp which is native to Australia. It has an obligate mutualism with the Moreton Bay Fig, Ficus macrophylla, the species it pollinates. Outside Australia, populations have become established in Hawaii and New Zealand where it was either accidentally introduced or arrived by long-distance dispersal.
Ficus lutea is a medium to large sized deciduous tree in the family Moraceae. It is commonly known as the giant-leaved fig or Lagos rubbertree. These trees occur from the Eastern Cape of South Africa to Tropical Africa.
The Southwest Amazon moist forests (NT0166) is an ecoregion located in the Upper Amazon basin.
The Purus várzea (NT0156) is an ecoregion of seasonally flooded várzea forest in the central Amazon basin. It is part of the Amazon biome. The ecoregion is home to a vegetation adapted to floods of up to 12 metres (39 ft) that may last for eight months. There is a great variety of fish and birds, but relatively fewer mammals. Ground-dwelling mammals must migrate to higher ground during the flood season. Threats include logging, cattle farming, over-fishing and mercury pollution from gold mining.
Xylosandrus crassiusculus, known generally as the Asian ambrosia beetle or granulate ambrosia beetle, is a species of tropical bark beetle in the family Curculionidae. It is native to Asia and has spread to Africa, Europe, Australasia and the Americas. The adult beetle is reddish-brown and some 2 to 3 mm long.
Ficus amplissima, also known as the Indian bat tree, Indian bat fig, Pimpri, Pipri (Piparee), Pipali or Bilibasari mara is a tree species of flowering plants that belongs to Moraceae, the fig or mulberry family. It is native to Central and southern Peninsular India, Sri Lanka and Maldives, having a significant distribution throughout Western Ghats of India. It is most commonly planted to provide shade in coffee plantations due to its dense and wide foliage. The ripened figs attract many birds, especially during the spring.