Stenanthemum petraeum is a species of flowering plant in the family Rhamnaceae and is native to inland Western Australia and the Northern Territory.

Stenanthemum petraeum is an erect, woody shrub that typically grows to a height of up to 1.5 m (4 ft 11 in), its young densely covered with soft, greyish hairs.

Flowering occurs sporadically throughout the year, and the fruit is a schizocarp 2–3 mm (0.079–0.118 in) long.

[2][3][4] Stenanthemum petraeum was first formally described in 1995 by Barbara Lynette Rye in the journal Nuytsia from specimens collected by Alex George near Neale Junction in 1974.

[3] Stenanthemum petraeum is listed as "not threatened" in Western Australia, by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,[6] but as "near threatened" under the Northern Territory Government Territory Parks and Wildlife Conservation Act.