Rafflesia verrucosa was first identified and characterized during a small mammal survey of Mt.

[2] Rafflesia species have rare and unusual flowers known for their large size and pungent smell.

Rafflesia verrucosa has very distinctive raised warts on its perigone lobes and diaphragm.

[2] Another unique characteristic of R. verrucosa is the anastomosing plate-like processes on the plants disk.

[2] The R. verrucosa specimens were found in a montane forest, which had a relatively rocky, sloping terrain.

[2] Understory vegetation in montane forests is dense, and is composed of ferns, lycophytes, ground orchids, gingers and grasses.

[2] In the area it was found, the spatial density of R. verrucosa was around 7-8 flower clusters per hectare.

[2] The Philippine warty pig was seen trampling some of the R. verrucosa flowers, but they were not seen eating the fruits.

In Borneo smaller mammals such as squirrels and the tree shrew eat Rafflesia fruits.

[2] The montane forest in which R. verrucosa is found, has become increasingly disturbed and fragmented by the abaca textile industry.