Persoonia micranthera, commonly known as the small-flowered snottygobble, is an endangered

Endangered species

An endangered species is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters...

 prostrate shrub

Prostrate shrub

A prostrate shrub is a woody plant, most of the branches of which lie upon or just under the ground, rather than being held erect as are the branches of most trees and shrubs....

 with yellow flowers and thin bark. It grows only on two peaks, Bluff Knoll

Bluff Knoll

Bluff Knoll is a peak in the Stirling Range in the south-west of Western Australia . It is above sea level, and is one of only a few places to experience regular snowfalls in Western Australia, with some snow reported in most years. The last heavy snowfall was on 6 October 1992 when...

 and Isongerup Peak, in the eastern section of the Stirling Range

Stirling Range

The Stirling Range or Koikyennuruff is a range of mountains and hills in the Great Southern region of Western Australia, 337 km south-east of Perth. It is located at approximately and is over 60 km wide from west to east, stretching from the highway between Mount Barker and Cranbrook...

, Western Australia

Western Australia

Western Australia is a state of Australia, occupying the entire western third of the Australian continent. It is bounded by the Indian Ocean to the north and west, the Great Australian Bight and Indian Ocean to the south, the Northern Territory to the north-east and South Australia to the south-east...

. A slow-growing plant, it takes more than six years to produce flowers and seed.

Prior to 1980, Persoonia micranthera was also present on Coyanerup Peak, but none were found there in 1990, and that population is now believed extinct

Extinction

In biology and ecology, extinction is the end of an organism or of a group of organisms , normally a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point...

. In April 1991 an intense bushfire burnt all known populations except for three adult plants on Isongerup Peak. A 1997 survey noted three adults and 150 seedlings on Isongerup Peak, but a 1999 survey of Bluff Knoll found no adults and only two seedlings there.