Lake Sebu, South Cotabato – A rare bloom of the critically endangered Rafflesia schadenbergiana has been documented within the Strict Protection Zone of the Allah Valley Protected Landscape (AVPL) in Barangay Ned, Lake Sebu. The discovery marks a significant milestone in conservation efforts for this elusive species.
The bud of the Rafflesia schadenbergiana was first documented on January 7, 2025. From January 8 to February 4, the Protected Area Management Office (PAMO)-AVPL, in collaboration with a sitio leader, closely monitored its development. On February 5, the team confirmed that the buds had begun to open, prompting immediate field monitoring on February 7.
The recorded bloom is approximately 20.8 kilometers from Barangay Ned Proper and 85.3 kilometers from Lake Sebu Proper. The flower measured an impressive 65 cm in diameter, with specific features including a window of 0.5-1 cm, diaphragm of 14 cm, warts of 2-3 cm, perigone of 26 cm, central disk of 22 cm, and processes of 2-3 cm. According to the sitio leader, additional Rafflesia schadenbergiana buds have been identified in the area and are expected to bloom between June and September 2025.
Department of Environment and Natural Resources (DENR)-12 Regional Executive Director Atty. Felix Alicer highlighted the importance of collaborative conservation efforts between local communities, environmental authorities, and researchers.
“This development shows that this rare and endangered flower, which only blooms for five days, should be protected with conservation initiatives such as habitat restoration, strict protection policy enforcement, and community education. These are vital to preserving biodiversity and maintaining AVPL’s ecological integrity,” Alicer stated.
The occurrence of Rafflesia schadenbergiana in AVPL is a significant discovery, as confirmed sightings of this species in the Philippines have been limited to select locations, including Davao and Bukidnon. The species is classified as Critically Endangered under DAO 2017-11 and faces severe threats due to habitat destruction and other environmental pressures.
Conservationists emphasize the need for continued monitoring and protection efforts to ensure the survival of this rare species. With the presence of additional buds in the reserve, local stakeholders and environmental groups remain committed to safeguarding the ecological balance of AVPL.
