Bossiaea webbii, commonly known as water bush, 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 high, sometimes with arching branches. The leaves are more or less round to kidney-shaped with fine teeth on the edges, long and wide on a petiole long with triangular stipules long at the base. The flowers are arranged singly or in pairs, each flower on a pedicel long, with broadly egg-shaped bracts attached to the pedicel. The five sepals are joined at the base, forming a tube long, the two upper lobes long and the lower lobes long. The standard petal is orange-yellow with a red markings and long, the wings are pinkish-red and yellow and long, and the keel greenish-white and pinkish-red and long. Flowering occurs from July to November and the fruit is a flattened pod long.[1]
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] The specific epithet (webbii) honours William Webb, who collected the type specimens.[4]
Water bush grows in jarrah, karri and marri forest and in low, heathy woodland in the Jarrah Forest and Warren biogeographic regions of south-western Western Australia.
Bossiaea webbii is classified as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions.