Calamus manillensis
(Mart.) H. Wendl.
Bayabong
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Wikimedia Commons
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Wikimedia Commons
Description
A palm or rattan. It is large and robust. The stem without the leaf sheath is 30 mm across. The leaves are compound with leaflets along the stalk. The leaves are 3 m long. The fruit are round and light cream. It has 3 seeds.
Edible Uses
In forests where rattan grows, its economic value can play a crucial role in conservation efforts. By offering an alternative source of income, rattan harvesting can deter loggers from engaging in timber logging. Harvesting rattan canes is simpler and requires less sophisticated tools compared to logging operations. Furthermore, rattan grows rapidly, which facilitates quicker replenishment compared to tropical wood species.This economic incentive supports forest maintenance by providing a profitable crop that complements rather than competes with trees. However, the long-term profitability and utility of rattan compared to other alternatives remain subjects of ongoing evaluation and study. Cleaned rattan stems with the leaf sheaths removed are superficially similar to bamboo. Unlike bamboo, rattan stems are not hollow. Most (70%) of the world's rattan population exists in Indonesia, distributed among the islands Borneo, Sulawesi, and Sumbawa. The rest of the world's supply comes from the Philippines, Sri Lanka, Malaysia, Bangladesh and Assam, India.
Traditional Uses
The young shoots are boiled and used in salads.
This uses section is brief — help expand it
Medicinal Uses
In early 2010, scientists in Italy announced that rattan wood would be used in a new "wood to bone" process for the production of artificial bone. The process takes small pieces of rattan and places them in a furnace. Calcium and carbon are added. The wood is then further heated under intense pressure in another oven-like machine, and a phosphate solution is introduced. This process produces almost an exact replica of bone material. The process takes about 10 days. At the time of the announcement the bone was being tested in sheep, and there had been no signs of rejection. Particles from the sheep's bodies have migrated to the "wood bone" and formed long, continuous bones. The new bone-from-wood programme is being funded by the European Union. By 2023, experimental implants into humans were taking place.
Distribution
A tropical plant. It grows in primary forests between 600-1,000 m altitude.
Where It Grows
Asia, Pacific, Philippines*, SE Asia,
Cultivation
Most species in this genus are more or less vigorous climbing plants in rainforests. Leaves of young plants are normally damaged if exposed to too much light, though leaves of older plants will usually tolerate full sun. In general, plants are likely to grow best with their roots in the shade but with enough gap in the canopy to encourage their stems to grow up towards the light. They are also likely to grow best in a humus-rich soil. Many of the species require fairly moist conditions for good growth, in fact several of them grow in wet soils or in areas with seasonal inundation - where we have the information it will be included under the plant’s habitat. Overhead shade should be manipulated at about 6-monthly intervals for the first 2 - 3 years of a young plant’s life to ensure they receive sufficient light to grow vigorously. About 40 - 50% light penetration is generally considered to be ideal for promoting stem growth. Little care is needed once the seedlings are established. It is important, however, to weed the area surrounding the seedlings occasionally until the plants are more than 2 metres tall. A dioecious species, both male and female forms need to be grown if fruit and seed are required.
Propagation
Seed - it has a fairly short viability and is best sown as soon as it is ripe. A traditional method is to shallowly bury the seeds, pile dried leaves on top and quickly burn the dried leaves. The heat enhances early seed germination.
Other Uses
The stems are considered to be of inferior quality compared to those of Calamus merrillii; they are used for tying and other purposes but not for furniture. The long and slender stems of Calamus species are put to various uses according to their size, length, flexibility, elasticity and toughness. The most slender canes are employed entire for binding purposes, and in making chairs, blinds, mats, wicker or basketwork, fishing implements, etc. Twisted together, they make very strong cables. The largest and more resistent canes are used entire as cables, the framework of wicker chairs etc. Usually, however, for many purposes the stems are split throughout their length into 2 - 4 or more strips from which the inner soft brittle and spongy portion is removed by means of a knife or same other instrument, so as to leave the external portion, which is hard, tough, flexible, elastic and has its outer surface very clean and smooth as if it had been varnished. Strips vary in width according to the use to which they are to be put. Those for delicate work, such as the network of furniture, small bags, hats, etc, are from 1 - 3mm wide; those employed as lashings in native housebuilding or in fastening the removable head of the Malay axe to its handle are from 5-6 mm wide. Collecting and preparing the stems is very simple. The stem is cut near the ground and detached from the trees by taking a strong hold of its base and thus pulling down the entire plant with its leaves. The most recent growth at the top of the plant is removed and then, handling it from the upper end, the stem is forcibly drawn in the opposite direction between two pieces of wood, thus removing the spiny coverings. It is then cut into lengths of about 5 metres, each piece is bent into two equal parts and the stems are fastened into bundles ready for market. The most valued stems are not thicker than a man's little finger and have a fine polished straw-yellow glassy surface. The fruit scales are flattened, dried and used for creative effects and accents for bamboo vases, pencil holders and ash trays.
Notes
There are 375-400 Calamus species. There are 175 species in tropical Asia.
Synonyms
Also Known As
Litoko, Lituku, Uay
References (5)
- Barcelo, R., 2015, Phytochemical Screening and Antioxidant Activity of Edible Wild Fruits in Benguet, Cordillera Administrative Region, Philippines. Electronic Journal of Biology, 2015, Vol.11(3): 80-89
- Chua-Barcelo, R. T., 2014, Ethnobotanical survey of edible wild fruits in Benguet, Cordillera administrative region, the Philippines. Asian Pac. J. Trop. Biomed. 4(Suppl. 1):S525-S538
- Johnson, D.V., 1998, Tropical palms. Non-wood Forest products 10. FAO Rome. p 66
- Menisa, A. A., et al, 2012, Survey and characterization of Indigenous Food Plants in Ilocos Norte, Philippines. SEARCA Discussion Paper series No. 2011-2
- PROSEA (Plant Resources of South East Asia) handbook, Volume 6, 1993, Rattans.
