Bossiaea webbii, commonly known as water bush,[2] is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia.

It is an erect, slender shrub with more or less round to kidney-shaped, minutely-toothed leaves and orange-yellow and red, pea-like flowers.

Bossiaea webbii is an erect, slender shrub that typically grows up to 2.6 m (8 ft 6 in) high, sometimes with arching branches.

[2][3] Bossiaea webbii was first formally described in 1882 by Ferdinand von Mueller in The Chemist and Druggist with Australasian Supplement from specimens collected "on the summit of Mount Lindsay, near King George's Sound".

[2][3] Bossiaea webbii is classified as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions.