Edible Plants of the World

Rukam

Rukam

A tropical plant. It grows in humid tropical conditions. It can grow in shade as well as full sun. They occur in Benguet to the southern parts of the islands of the Philippines. Trees occur in tall lowland rainforest. They probably grow from sea level up to about 1600 m in Papua New Guinea. In Samoa it grows from 50 to 550 m altitude. It suits hardiness zones 10-12. In Yunnan.

Also known as:

Aganas, Amaiit, Bitongol, Chemechong, Filimoto, Firmoto, Ganda rukem, Hong quan, Indian prune, Kalominga, Kaluminga, Ken, Khrop-dong, Klang tatah kutang, Kupa landak, Meptengkek, Mung guan ru'ung, Pohon rukem jambon, Rokam, Rukam bubur, Rukam gajah, Rukam manis, Rukem, Ta khop thai, Takho-thai, Tepetatah, Ukam

Synonyms

Edible Portion

Where does Rukam grow?

Found in: Africa, American Samoa, Asia, Australia, Cambodia, China, Chuuk, Cook Islands, Cuba, East Africa, East Timor, Fiji, India, Indochina, Indonesia, Laos, Malaysia, Micronesia, Pacific, Palau, Papua New Guinea, PNG, Philippines, Pohnpei, Rotuma, Samoa, Sarawak, SE Asia, Singapore, Solomon Islands, Taiwan, Thailand, Timor-Leste, Tonga, Vanuatu, Vietnam, Wallis and Futuna

Notes: There are about 17 Flacourtia species. Also put in the Flacourtiaceae family.

Status: In Papua New Guinea, trees occur but are not very common in coastal areas.

Growing Rukam

Cultivation: Trees are mostly self sown. They grow from seed. Seed germinate quickly and easily. Trees can be grown from seed or root suckers. Root suckers are commonly produced. Fruit are made sweeter by rubbing them after harvest. Trees can also be budded or grafted. Trees are spaced 8-12 m apart.

Edible Uses: The fruit are eaten raw when ripe. The fruit are rolled between the hands to reduce the astringency. It can be sour and is used for jam, sauce or pickles. The young leaves and shoots are edible. The young roots are edible.

Production: Fruiting is seasonal. There can be several flowering and fruiting flushes during the year. Fruit are often produced about September to November in the southern hemisphere. Fruit take 14 weeks to ripen.

Nutrition Info

per 100g edible portion

Edible Part Energy (kcal) Protein (g) Iron (mg) Vitamin A (ug) Vitamin c (mg) Zinc (mg) % Water
Fruit 83 1.7 - - - - 77

Rukam Photos

Rukam Rukam Rukam Rukam Rukam Rukam

References

Rukam references Flacourtia rukam

Alegado, A. M. & De Guzman, R. B., 2014, Indigenous food crops of the Aetas tribe in the Philippines and their traditional methods of food preparation. in Promotion of Underutilized Indigenous Food Resources for Food Security and Nutrition in Asia and Pacific. FAO. Bangkok p 160

Arora, R. K., 2014, Diversity in Underutilized Plant Species - An Asia-Pacific Perspective. Bioversity International. p 71

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

Brown, W.H., 1920, Wild Food Plants of the Philippines. Bureau of Forestry Bulletin No. 21 Manila. p 122

Burkill, I.H., 1935, A Dictionary of the Economic Products of the Malay Peninsula. p 1040-1041.

Chai, P. P. K. (Ed), et al, 2000, A checklist of Flora, Fauna, Food and Medicinal Plants. Lanjak Entimau Wildlife Sanctuary, Sarawak. Forestry Malaysia & ITTO. p 167

Christopherson, E, .,1935, Flowering Plants of Samoa. Flacourtia rukam Bernice P. Bishop Museum Bulletin 128. pp. 151-152.

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

Corner,

Coronel, R.E., 1982, Fruit Collections in the Philippines. IBPGR Newsletter p 10

Cowie, I, 2006, A Survey of Flora and vegetation of the proposed Jaco-Tutuala-Lore National Park. Timor-Lests (East Timor) www.territorystories.nt/gov.au p 48

Cundall, P., (ed.), 2004, Gardening Australia: flora: the gardener's bible. ABC Books. p 606

Darley, J.J., 1993, Know and Enjoy Tropical Fruit. P & S Publishers. p 132

Delang, C. O., 2007, Ecological Succession of Usable Plants in an Eleven-Year Fallow Cycle in North Lao P.D.R., Ethnobotany Research and Applications. Vol. 5:331-350

Etherington, K., & Imwold, D., (Eds), 2001, Botanica's Trees & Shrubs. The illustrated A-Z of over 8500 trees and shrubs. Random House, Australia. p 330

Facciola, S., 1998, Cornucopia 2: a Source Book of Edible Plants. Kampong Publications, p 117

Forest Inventory and Planning Institute, 1996, Vietnam Forest Trees. Agriculture Publishing House p 311

French, B.R., 1986, Food Plants of Papua New Guinea. A Compendium. Asia Pacific Science Foundation. p 248

French, B.R., 2010, Food Plants of Solomon Islands. A Compendium. Food Plants International Inc. p 242

Gardner, S., et al, 2000, A Field Guide to Forest Trees of Northern Thailand, Kobfai Publishing Project. p 54

Giesen, W., 2013, Paludiculture: sustainable alternatives on degraded peat land in Indonesia (revised draft)

Hariyadi, B., 2008, The Entwined Tree: Traditional Natural Resource Management of Serampas, Jambi, Indonesia. Ph. D thesis. Univ. or Hawaii. p 402

Hu, Shiu-ying, 2005, Food Plants of China. The Chinese University Press. p 564

Jacquat, C., 1990, Plants from the Markets of Thailand. D.K. Book House p 52

Jansen, A. A. J., et al, (Eds), 1990, Food and Nutrition in Fiji. Volume One. p 43

Kitalong, A. H., DeMeo, R. A., & Holm, T., 2013, A Field Guide to the Native Trees of Palau. 2nd edition. USDA p76 (As var. micronesica)

Kiple, K.F. & Ornelas, K.C., (eds), 2000, The Cambridge World History of Food. CUP p 1790

Lembaga Biologi Nasional, 1977, Buah-Buahan, Balai Pustaka, Jakarta. p 110

Liefting, A., et al, Samoan plant names. http://en.wikipedia.org

Macmillan, H.F. (Revised Barlow, H.S., et al) 1991, Tropical Planting and Gardening. Sixth edition. Malayan Nature Society. Kuala Lumpur. p 300

Martin, F.W. & Ruberte, R.M., 1979, Edible Leaves of the Tropics. Antillian College Press, Mayaguez, Puerto Rico. p 192

Miguel, E., et al, 1989, A checklist of the cultivated plants of Cuba. Kulturpflanze 37. 1989, 211-357

Molesworth, A.B., 1967, Malayan Fruits, Donald Moore Press, Singapore. p 59-62.

Monsalud, M.R., Tongacan, A.L., Lopez, F.R., & Lagrimas, M.Q., 1966, Edible Wild Plants in Philippine Forests. Philippine Journal of Science. p 470

A. Moritzi et al., Syst. Verz. 33. 1846

Morton, J. F., 1987, Fruits of Warm Climates. Wipf & Stock Publishers p 318

Ochse, J.J. et al, 1931, Vegetables of the Dutch East Indies. Asher reprint. p 292

Pawera, L., et al, 2020, Wild Food Plants and Trends in Their Use: From Knowledge and Perceptions to Drivers of Change in West Sumatra, Indonesia, Foods. 2020, 9, 1240

Peekel, P.G., 1984, (Translation E.E.Henty), Flora of the Bismarck Archipelago for Naturalists, Division of Botany, Lae, PNG. p 383, 380

Pham-Hoang Ho, 1999, An Illustrated Flora of Vietnam. Nha Xuat Ban Tre. p 541

Priyadi, H., et al, Five hundred plant species in Gunung Halimun Salak National Park West Java. A checklist including Sundanese names, distribution and use. CIFOR, FFPRI, SLU p 149

PROSEA (Plant Resources of South East Asia) handbook, Volume 2, 1991, Edible fruits and nuts.

Saw, L.G., LaFrankie, J. V. Kochummen, K. M., Yap S. K., 1991, Fruit Trees in a Malaysian Rain Forest. Economic Botany, Vol. 45, No. 1, pp. 120-136

Setiyati Sastrapradja (Ed.), 1977, Buah-buahan [Fruits]. Lembogi Biologi Nasional LIPI, Bogor. p110-111.

Sleumer, H., 1954, Flacourtiaceae. In van Steenis, C.G.G.J., (Ed.): Flora Malesiana, Series 1. Vol. 5 pp. 69-77.

Slik, F., www.asianplant.net

Smith, A.C., 1981, Flora Vitiensis Nova, Lawaii, Kuai, Hawaii, Volume 2 p 637

Sunarjono, H.H., Flacourtia rukam in Verheij, E.W.M., and Coronel, R.E., 1991, Plant Resources of South-East Asia. PROSEA No 2 Edible fruits and nuts. p 168-169. PUDOC, Wageningen.

Sukarya, D. G., (Ed.) 2013, 3,500 Plant Species of the Botanic Gardens of Indonesia. LIPI p 295

Suwardi, A. B., et al, 2020, Wild edible fruits generate substantial income for local people of the Gunung Leuser National Park, Aceh Tamiang Region. Ethnobotany Research & Applications 20:11

Suwardi, A. B., et al, 2020, Ethnobotany and conservation of indigenous edible fruit plants in South Aceh, Indonesia. Biodiversitas Vol. 21, No. 5, pp 1850-1860

Terra, G.J.A., 1973, Tropical Vegetables. Communication 54e Royal Tropical Institute, Amsterdam, p 46

Thitiprasert, W., et al, 2007, Country report on the State of Plant Genetic Resources for Food and Agriculture in Thailand (1997-2004). FAO p 95

TodaFruta.com.br

USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN). [Online Database] National Germplasm Resources Laboratory, Beltsville, Maryland. Available: www.ars-grin.gov/cgi-bin/npgs/html/econ.pl (10 April 2000)

Walter, A. & Sam C., 2002, Fruits of Oceania. ACIAR Monograph No. 85. Canberra. p 173

Whistler, W.A., 2004, Rainforest Trees of Samoa. Isle Botanica Honolulu, Hawaii. p 80

Wiriadinata, H., 1995, Ethnobotany of Economic Plants in the Baliem Valley, Jayawijaya, Irian Jaya, Indonesian Institute of Science, Bogor, Indonesia

World Checklist of Useful Plant Species 2020. Royal Botanic Gardens, Kew

Yuncker, T.G., 1959, Plants of Tonga, Bernice P. Bishop Museum, Hawaii, Bulletin 220. p 191

Zawiah, N. & Othaman, H., 2012, 99 Spesies Buah di FRIM. Institut Penyelidikan Perhutanan Malaysia. p 122