Have you tried sinigang sa alibangbang?

The native wild plant has long been used as a traditional Filipino souring agent.

Did you know that before sampalok mixes and instant sinigang powders became common in Filipino kitchens, many provinces already relied on a wild leaf called alibangbang to give soups their signature asim?

Known for its butterfly-shaped leaves, alibangbang is more than just a native tree quietly growing along roadsides and open fields. For generations of Filipinos, especially in the Visayas and Mindanao, its young leaves and shoots were prized for one very specific purpose: adding a clean, citrusy sourness to food.

The flavor is different from the deep tang of tamarind or the sharp bite of kamias. Alibangbang gives dishes a lighter, greener acidity — the kind that slowly spreads through hot broth rather than aggressively hitting the tongue.

This is why older cooks traditionally used it in sinigang, bulalo, pinapaitan, fish soups, and native vegetable dishes. In some households, freshly picked leaves are tossed directly into simmering broth. Others crush the young shoots slightly first to release more flavor before boiling.

For many who grew up in the province, the experience is deeply familiar: someone stepping into the backyard, plucking a handful of butterfly-shaped leaves from a tree, and dropping them into a pot of simmering soup while rice cooks nearby.

Alibangbang’s name itself comes from the local word for butterfly because of the leaf’s distinct twin-lobed shape. At night, the leaves fold inward and reopen during the day, making the tree seem almost alive.

But beyond flavor, alibangbang also carries a long history of survival and resilience. Historical accounts mention Filipino and American soldiers chewing the sour leaves during the Bataan Death March to help fight hunger and thirst during World War II.

The plant was also widely used in traditional herbal medicine, with boiled leaves and bark prepared as remedies for cough, fever, swelling, and body pain.

Today, many younger Filipinos may no longer recognize alibangbang despite its deep connection to traditional cooking. Urbanization, changing food habits, and the convenience of instant souring mixes slowly pushed native ingredients like it into the background.

Ironically, many people now see ornamental butterfly trees in parks and subdivisions without realizing that the original native alibangbang was once an important part of Filipino kitchens.

As interest in regional cuisine and indigenous ingredients continues to grow, alibangbang is quietly finding its way back into conversations about heritage food.

Because sometimes, the best souring agent was never inside a seasoning packet — it was already growing outside the house all along.