Daviesia umbonata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a bushy, openly-branched shrub with narrowly elliptic to narrowly egg-shaped, sharply pointed phyllodes and yellow and red flowers.
Daviesia umbonata is a bushy, openly-branched shrub that typically grows to a height of . Its phyllodes are narrowly elliptic to narrowly egg-shaped, long, wide and sharply pointed. The flowers are arranged singly or in pairs in the axils on a pedicel long. The sepals are long and joined at the base, the upper two lobes joined for and the lower three triangular and long. The standard petal is elliptic with a notched centre, about long, wide and yellow with a dark red base. The wings are long and dull red, the keel long and dull red. Flowering occurs in June and July and the fruit is a shallowly triangular pod long.[1]
Daviesia umbonata was first formally described in 1997 by Gregory T. Chandler and Michael Crisp in Australian Systematic Botany from specimens collected by Crisp near Moonijin in 1980.[2] The specific epithet (umbonata) means "bossed" referring to bulges near the sepal lobes.[3]
This daviesia grows in kwongan north from the Wongan Hills-Manmanning area in the Avon Wheatbelt, Geraldton Sandplains and Jarrah Forest bioregions of south-western Western Australia.
Daviesia umbonata is classified as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions.