Rafflesia verrucosa

Definition

Rafflesia verrucosa is a species of Rafflesia endemic to eastern Mindanao, Philippines, first identified and characterized during a small-mammal survey of Mount Kampalili in 2010. The tenth species of Rafflesia recorded from the Philippines, it bears the genus’s trademark giant flowers, named for the distinctly wart-covered (verrucose) central disk. Like its relatives it is an endophytic holoparasite of rainforest vines, invisible until its buds emerge and open into blooms that can exceed half a meter across.

Identities

Wikipedia: Rafflesia verrucosa
Wikidata: Q18119873
DBpedia: http://dbpedia.org/resource/Rafflesia_verrucosa

Also Known As

The Kampalili Rafflesia; tenth Philippine Rafflesia; warty-disk Rafflesia.

Examples and Analogy

Discovery by mammal survey makes it the botanist’s equivalent of finding a new island while fishing: traps set for rats on Mount Kampalili returned a flower instead—proof of how thinly explored the Philippines’ remaining rainforests still are.

Usage Scenarios

Cited in biodiversity inventories of the Mindanao Eastern Cordillera; included in research on Rafflesia species limits and biogeography; used in local conservation education in Davao Region about protecting parasitic plants and their host vines.

Strategies

Botanists document populations through repeat visits to known host-vine clusters, photographing and measuring flowers rather than collecting whole blooms. Conservation strategy centers on protecting Mount Kampalili’s forest cover and the Tetrastigma lianas the species cannot live without.

Security and Safety Measures

As a known-site endemic, its vulnerability is total: forest conversion, burning, and cutting of host lianas eliminate it outright. Researchers follow strict minimal-impact protocols, and local stewardship is cultivated so residents value living blooms over cleared land.

Historical Context

Its 2010 discovery and formal description marked the Philippines’ tenth Rafflesia species, crowning a decade of rapid discoveries that established the country as one of the genus’s global hotspots, with Mindanao’s mountains proving especially rich in narrow-range species.

Challenges and Controversies

Mount Kampalili’s forests face mining, logging, and insurgent-era access problems that complicate both research and protection. Scientists also debate species boundaries among Mindanao Rafflesia, where flower morphology varies continuously across mountain ranges.