J.R.Wheeler & N.G.Marchant Agonis grandiflora is a species of flowering plant in the family Myrtaceae, and is endemic to the southwest of Western Australia.

It is an erect, often straggly shrub with sessile, linear leaves, white flowers often suffused with pink and broadly cup-shaped capsules.

Agonis grandiflora is an erect, often straggly sbrub that typically grows to a height of 1.7 m (5 ft 7 in) and has many stems that are hairy at first, later glabrous.

[1][2][4] In 2007, Judith R. Wheeler and Neville G. Marchant transferred the species to the genus Paragonis as P. grandiflora, and that name is accepted by the Western Australian Herbarium[5] and the Australian Plant Census,[6] but not accepted by Plants of the World Online.

[1] This species grows in woodland and scrub in a few locations on the Darling Scarp in the Jarrah Forest and Swan Coastal Plain bioregions in the south-west of Western Australia.