Plant Species New to Science Shines Spotlight on Apayao’s UNESCO Biosphere Reserve



Scientists have discovered a new species of plant in the highland forests of Apayao, reinforcing the province’s status as the Philippines’ newest UNESCO Biosphere Reserve.

The species, named Vaccinium kilangensis and described in the international journal Phytotaxa, belongs to the same family as blueberries. Found only in Kilang Pass at the Apayao–Ilocos Norte border, the plant has distinctive small leaves and flowers unlike any other known in the Philippines.

“This shows us that even today, there are species waiting to be discovered in Apayao’s forests,” said Dr. Pieter Pelser, lead author of the study and a scientist with the University of Canterbury and the Philippine Eagle Foundation. “It proves why protecting these places under UNESCO matters—not just for culture and communities, but for global science.”

Apayao was officially declared the country’s 4th UNESCO Biosphere Reserve in June 2025, recognizing its Indigenous Isnag communities and vast intact forests.

“This discovery is a proud moment for Apayao,” said Governor Butzy Bulut Jr. “It’s proof of the natural wealth entrusted to us. As Isnags, our lives are bound to these forests, and we are committed to protecting them for future generations.”

For the Philippine Eagle Foundation, which co-authored the study, the find highlights how closely species survival is linked to protecting ecosystems.

“Finding a new plant like this gives us hope,” said Dennis Salvador, Executive Director of the Philippine Eagle Foundation. “When we protect as much forests for the Philippine eagle, we also safeguard countless species still unknown to science.”


Researchers stress that Vaccinium kilangensis is so far known only from a single site, underscoring the urgency of conservation.

With UNESCO recognition and discoveries like this, Apayao is fast emerging as a national model for local government and Indigenous-led forest protection and sustainable development.

The Philippine Eagle Foundation invites the public to take part in this celebration of purpose-driven action. By joining BayaniRun, participants contribute to the protection of one of the world’s rarest raptors and help ensure a future where both people and nature thrive.

(PR)