Tamarind

• 1. Introduction

  ›

  Tamarind, known to botanists as Tamarindus indica, carries a name that points to the wrong continent. In Arabic it was called tamr hindi, meaning Indian date. Yet the tree is indigenous to tropical Africa.

  Its pods hold a sweet and tangy pulp that cooks, flavors and preserves food in kitchens across the world. The tree stands alone in its genus, with no close relative sharing its name. It belongs to the legume family, alongside peas and beans.

  How did a savanna tree from Africa pick up an Indian name, and end up lining roads in Indonesia? Why does one species turn up in sauces, in textile mills, in temple brass polish and in folk remedies? And what does a tree have to be like to travel so far and be wanted for so many jobs? The answers begin with the words people used for it.

  1532052

• 2. Names and Routes

  ›

  Several early medieval herbalists and physicians wrote the name as tamar indi, a spelling that kept the Arabic sound. Medieval Latin settled on tamarindus. Marco Polo, for his part, wrote of tamarandi. Each spelling records another stage in the tree's long journey through the written world.

  In Southeast Asia, the tree acquired names of its own. People in many countries there call it asam jawa, which means Javanese sour fruit, or simply asam. On Timor the word is sukaer. In the Philippines it is sampalok or sampaloc in Filipino, and sambag in Cebuano.

  The wild home of the tree lies far from those ports. Botanical studies place its native range in the dry savannas of the Sudanian belt. That belt stretches westward from Sudan, especially the Kordofan region, across sub-Sahelian Africa. Across the Arabian Sea, the tree also grows wild in Oman, especially in Dhofar, where it clings to mountain slopes that face the sea.

  On the Indian subcontinent, the tree has been grown for so long that it is sometimes reported as native there. Most likely it arrived through human transportation and cultivation several thousand years ago. Today it is spread widely through the tropics, from Africa to South Asia and Australia.

  In Madagascar, the fruit and leaves are a well-known favorite of the ring-tailed lemur. When the tree is available, it can supply as much as 50 percent of what these animals eat across the year.

  In the 16th century, Spanish and Portuguese colonists carried the tree to Mexico and Central America, and to a lesser degree to South America. It became a staple of regional cooking there. In Mexico it would later appear in a chicken dish built around chipotle.

  1516173520

• 3. Anatomy of a Survivor

  ›

  A tamarind trunk can grow to a circumference of 7.5 meters, which is wider than many rooms. The tree lives long and grows at a medium pace. Its crown is irregular and vase-shaped, with dense foliage spreading up to 12 meters across.

  Full sun suits it. It accepts clay, loam, sandy and acidic soils, and it stands up well to drought and to salt carried on the wind in coastal areas. Frost is its weakness, since it is a tropical species.

  The evergreen leaves are arranged alternately and are paripinnately compound, meaning each leaf is a row of paired leaflets. The leaflets are bright green, elliptic-ovular, pinnately veined and shorter than 15 centimeters. Because the leaflets sit opposite one another, the foliage seems to billow when wind passes through.

  As the tree matures, its branches droop from a single central trunk. Farmers often prune them to control tree density and make harvesting easier.

  The flowers are easy to overlook. They are 2.5 centimeters wide, five-petalled and carried in small racemes. Their color is yellow with orange or red streaks. The buds look pink, because four pink sepals wrap them and then fall away as the flower opens.

  The fruit is an indehiscent pod, meaning it does not split open on its own. It measures 12 to 15 centimeters long and wears a hard, brown shell. Inside, the flesh is acidic and fleshy, and it is ripe once it turns brown or reddish brown. The taste is both sweet and sour.

  Pods differ by region. Asian tamarinds have longer pods holding six to 12 seeds. African and West Indian varieties have shorter pods with one to six seeds. The seeds are somewhat flattened and glossy brown. A mature tree may yield up to 225 kilograms of fruit in a year.

  In 2025, researchers published a gap-free telomere-to-telomere genome assembly for the species. It measures approximately 809.5 Mb and is organized into 12 pseudochromosomes. Its BUSCO completeness score is 98.8 percent, and 30,753 protein-coding genes were predicted.

  12761314

• 4. Sweet and Sour Pulp

  ›

  Worcestershire sauce and HP Sauce both draw on tamarind pulp, as do some brands of barbecue sauce. Pulp is the part of the tree cooks use most, in chutneys, curries and sauces, and in the traditional sharbat syrup drink. In India and Pakistan, a sweet tamarind chutney dresses many snacks and is often served with samosa.

  From the Levant to Iran, cooks add the pulp to savory dishes, especially meat-based stews. They often pair it with dried fruits to get a sweet-sour tang.

  During Ramadan, people in the Levant make a traditional beverage called tamr-hindi, which is particularly popular there. The cook boils tamarind paste in water, sweetens it with sugar and strains the mixture. Some versions add rosewater and lemon juice.

  Street vendors play a major part in selling the drink. They carry large copper pots of juice on their backs and arrange numerous cups around their waists, so passersby can be served on the spot.

  Tamarind also became part of kosher and Jewish cooking across several diasporas. It reached the Middle East through Jewish merchants on the Silk Road in the 7th century. Syrian Jews boil the pulp with sugar and lemon to make a syrup called ou or ouc. They use it in yebra, which is stuffed grape leaves, in bazargan, a bulgur salad, in keftes, sweet-sour meatballs, and in laham b'ajeen, a meat flatbread.

  In India, Baghdadi, Cochin and Bene Israel Jews use tamarind in regional recipes such as bamia khutta, mahmoora, tamarind rice and lamb with red chilies. Syrian Jewish communities in Mexico adapted the flavor to local ingredients, as in chicken with tamarind, apricots and chipotle.

  In contemporary Israel, tamarind juice has found fans well beyond traditional communities. Commercial producers help, including Prigat, which issues seasonal releases during Ramadan.

  3331292536

• 5. Beyond the Pulp

  ›

  In Ghana, a young tamarind fruit can make certain poisonous yams safe to eat. At that stage the pulp is hard and green, and cooks also use it in savory dishes and as a pickling agent. As the fruit ripens it grows sweeter and less acidic, and some sweet cultivars have almost no sourness when ripe. Harvesters simply pull the pod from its stalk.

  In the Philippines, the whole fruit helps sour a soup called sinigang, although other sour fruits can do the same job. A related soup, sinampalukan, uses tamarind leaves instead. Cooks also simmer the pulp with sugar and salt to make champóy na sampalok, a traditional tamarind candy. Indonesia has its own sour, tamarind-based soup, sayur asem.

  In Sri Lanka, the pulp has served as a substitute for lime. Senegalese cooks mix it with sugar to make sweet meats called bengal. In India, tamarind juice is used to preserve fish. Across East Africa, the pulp goes into ugali, a porridge made from maize flour.

  The seeds need soaking and boiling before they can be eaten. They contain pectin, which gives them jelly-forming properties, so they appear in jellies, marmalades and jams. They have also served as a stabilizer in cheese, ice cream and mayonnaise. In Indonesia, roasted seeds become a snack eaten with salt and grated coconut. In Thailand, the seeds stand in for coffee.

  In Myanmar, tender tamarind leaves are blanched and tossed with garlic, onions, roasted peanuts and pounded dried shrimp. The result is a salad from Upper Myanmar called magyi ywet thoke, literally tamarind leaf salad.

  The numbers back up this versatility. Seeds hold 26.9 grams of protein and 10.9 grams of oil per 100 grams, and in some countries they serve as emergency food. The leaves are high in calcium and protein, and both domestic animals and wild animals, including elephants, eat them as fodder.

  Raw fruit is 63 percent carbohydrates, 31 percent water, 3 percent protein and 1 percent fat. A 100 gram serving supplies 1000 kilojoules. It is a rich source of thiamine at 36 percent of the Daily Value, plus magnesium at 22 percent and potassium at 21 percent.

  839404641

• 6. Mill, Workshop and Temple

  ›

  Inside each tamarind seed sits a kernel that is hard to separate from its thin but tough shell, known as the testa. Once freed, the kernel yields an oil with a consistency similar to linseed oil. People use it to make paint or varnish. In Bengal, seeds go into an oil for varnishes.

  The kernel can also be ground into powder. Textile and jute factories use it as sizing material, and it appears in the manufacture of industrial gums and adhesives. The powder works because it absorbs water and swells. In India it has been used as a sizing agent in cotton production.

  A composition table for the kernel lists polysaccharide at 51.0 percent in the original kernel and 55.0 percent once de-oiled. The oil's fatty acids break down as 46.5 percent linoleic, 27.2 percent oleic and 26.4 percent saturated. Producers usually bleach it after refining. Leaves and flowers serve as a setting agent for dyes.

  The wood is used for furniture, carvings and boats, as noted by Rumphius. It also becomes mortars and pestles, chopping blocks and krises. The heartwood is reddish brown, sometimes with a purplish hue. It is narrow and generally appears only in older, larger trees. Pale yellow sapwood is sharply marked off from it.

  Heartwood is durable to very durable against decay and resists insects. The sapwood is not durable. Insects and fungi attack it, and it is prone to spalting.

  Craftspeople find tamarind difficult to work because of its density and interlocked grain. The heartwood blunts cutting edges noticeably. Even so, the wood turns, glues and finishes well, and the heartwood takes a high natural polish.

  In homes and temples, especially in Buddhist Asian countries such as Myanmar, the fruit pulp is used for a different kind of polishing. It cleans brass shrine statues and lamps, and copper, brass and bronze utensils.

  483941645

• 7. Remedies and Warnings

  ›

  In Southeast Asia, people apply tamarind fruit as a poultice to the foreheads of those with fevers. The fruit also has laxative effects that relieve constipation. In Java, extracts of steamed and sun-dried old pulp, called asem kawa, are used to treat skin problems such as rashes and irritation. One traditional practice also held that the diluted pulp could be swallowed as an abortifacient.

  In northern Nigeria, the roots are thought to help with leprosy. In America, folk medicine considers the pulp a laxative and uses it for sunstroke and sore throats. Thai makers have pressed the pulp into a tablet, in the belief it can reduce excess weight. In Brazil, it is used for its supposed hydrating effects.

  Powdered seeds have been used to possibly aid dysentery in India and Cambodia. In Ethiopia, softened seeds are a possible treatment for parasitic worms.

  Laboratory work has started to examine what lies behind such uses. Leaf extract contains lupeol, catechins, epicatechin, quercetin and isorhamnetin. Ultra-high-performance liquid chromatography found that the seeds contain catechins, procyanidin B2, caffeic acid, ferulic acid, myricetin, morin, quercetin, apigenin and kaempferol, along with chloramphenicol.

  Not every creature can safely share the fruit. Tamarind is toxic to dogs and can cause acute kidney injury. Vomiting or diarrhea may appear within 6-12 hours of ingestion, followed by lethargy or dehydration. The proposed mechanism runs through tartaric acid, the same one blamed for grape toxicity in dogs.

  4344515645

• 8. Orchards and Roadsides

  ›

  Seeds can be scarified or briefly boiled to improve germination, and they keep their ability to sprout for several months if stored dry. That simple trick helps explain how the species spread so widely.

  In Africa, tamarind is a traditional food plant. It is not grown on a large commercial scale there. Even so, it has the potential to improve nutrition, boost food security, foster rural development and support sustainable land care.

  India grows the tree widely, especially in Maharashtra, Chhattisgarh, Karnataka, Telangana, Andhra Pradesh and Tamil Nadu. Extensive orchards there produced 250000 tonnes annually in the late 20th century. The tree has long been naturalized in Indonesia, Malaysia, Sri Lanka, the Philippines, the Caribbean and the Pacific Islands. Among ASEAN nations, Thailand has the largest plantations, followed by Indonesia, Myanmar and the Philippines.

  In the United States, tamarind is a large-scale crop introduced for commercial use, second in net production only to India. It grows mainly in southern states, notably south Florida, and is planted as a shade tree along roadsides, in dooryards and in parks.

  In Indonesia, roadside tamarinds trace back to the Dutch colonial period, when planners widely used them in urban landscaping. Today they remain a common sight, a living heritage of early 20th-century Dutch spatial planning.

  The tree also works at a smaller scale. Gardeners across South Asia and the tropical world plant it for ornament. Many Asian countries use it as a bonsai species, and in temperate parts of the world it is grown as an indoor bonsai.

  752531655