Philippine scientists have formally identified Clerodendrum kelli, a critically endangered shrub known for centuries by the Bugkalot community. This discovery underscores how indigenous knowledge helps bridge cultural heritage and modern science to protect rare species.
- Critically endangered shrub found in only 8 sq km of forest
- Bugkalot people use its leaves medicinally for sick dogs
- Habitat loss, not traditional use, threatens the plant's survival
What happened
In December 2025, researchers from Ateneo de Manila University formally documented Clerodendrum kelli, a small shrub native exclusively to the Caraballo Mountain Range in Nueva Ecija province. This plant had long been used by the Bugkalot people, who applied mashed leaves as a traditional remedy to help restore the health of sick dogs. Existing naturally within two specific localities of only 8 square kilometers, the shrub grows in humid montane rainforests at elevations between 1,170 and 1,362 meters.
Despite its cultural significance and distinctive characteristics—including pale purple undersides on green leaves and white tube-shaped flowers arising from reddish-pink bases—the species was not formally recognized by science until recent fieldwork conducted during 2022 and 2023. Its unique floral morphology helped researchers establish it as distinct from related Clerodendrum species.
Why it feels good
This discovery highlights a powerful collaboration between indigenous ecological knowledge and formal scientific methods. The Bugkalot people's deep understanding of their environment directly contributed to the identification and naming of this rare species, honored by its scientific name that reflects the local term 'kelli.' Such respect and validation encourage ongoing respect for indigenous cultures and their crucial role in biodiversity conservation.
Moreover, the documentation brings awareness to the shrub’s critically endangered status, helping channel conservation efforts where they are most needed. Recognizing that habitat degradation—not traditional medicinal use—poses the greatest threat emphasizes the need for sustainable land management. This acknowledgment fosters hope that valuing traditional knowledge can guide more effective environmental protection strategies.
What to enjoy or watch next
Following the formal recognition of Clerodendrum kelli, conservationists and local government agencies may increase protective measures within the Pantabangan-Carrangalan Watershed Forest Reserve, seeking to counter ongoing habitat loss caused by land conversion and natural disturbances like landslides. Observing how effective these efforts become in preserving this fragile ecosystem will offer valuable lessons for other endangered plants growing in isolated mountain habitats.
Additionally, future research linking indigenous uses and botanical studies could reveal more about the medicinal potentials of kelli and related species. Keeping an eye on this intersection of traditional wisdom and science promises exciting insights and inspiring examples of how communities and researchers can collaborate to safeguard nature’s rare wonders.