Acacia denticulosa, also known as Sandpaper Wattle, is a species of Acacia

Acacia

Acacia is a genus of shrubs and trees belonging to the subfamily Mimosoideae of the family Fabaceae, first described in Africa by the Swedish botanist Carl Linnaeus in 1773. Many non-Australian species tend to be thorny, whereas the majority of Australian acacias are not...

 native to the south-west of 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...

. It is a spindly shrub that grows from 1 metre to 4 metres high. It flowers from late winter to early spring, producing dense, curved, yellow flower spikes.

The species was first formally described in 1876 by Victorian Government Botanist Ferdinand von Mueller

Ferdinand von Mueller

Baron Sir Ferdinand Jacob Heinrich von Mueller, KCMG was a German-Australian physician, geographer, and most notably, a botanist.-Early life:...

 based on plant material collected from the vicinity of Mount Churchman by Jess Young

Jess Young

Jess Young was an explorer who accompanied Ernest Giles during his fourth expedition, making some important botanical collections along the way.Little is known of his early life; it is not even certain whether "Jess" was a full given name or an abbreviation...

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