Ptilotus gomphrenoides is a species of flowering plant in the family Amaranthaceae and is endemic to Western Australia. It is an erect, low-lying or rarely prostrate annual herb, with narrowly lance-shaped to broadly lance-shaped stem leaves, flowers arranged singly or in clusters, rarely in cylindrical spikes of pink flowers.
Ptilotus gomphrenoides is an erect, sometimes low-lying or rarely prostrate annual herb, that typically grows to a height of up to , its stems ribbed and or with a sparse covering of simple hairs. The leaves on the stems are arranged alternately, narrowly to broadly lance-shaped, long and wide. The flowers pinkish white and arranged singly or in clusters in leaf axils or on the ends of stems on a peduncle long, or rarely in cylindrical spikes long and wide, with egg-shaped, translucent bracts long, and egg-shaped, glabrous bracteoles long. The outer sepals are narrowly lance-shaped, long and the inner sepals are long. There are 5 fertile stamens, the style is straight, long and fixed to the centre of the ovary. Flowering occurs from April to September.
Ptilotus gomphrenoides was first formally described in 1870 by George Bentham in his Flora Australiensis, from an unpublished description by Ferdinand von Mueller. The specific epithet (gomphrenoides) means Gomphrena-like'.
This species of Ptilotus usually grows on flat, seasonally inundated floodplains, riverbanks or creek lines in red or brown soils in the Carnarvon, Gascoyne, Gibson Desert, Murchison, Pilbara and Tanami bioregions of Western Australia.
Ptilotus gomphrenoides is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.