Erect or spreading shrub 0.6-2 m tall. Branchlets and leaves glabrous. Leaves 4-20 cm long, simple, terete, blunt to shortly acute, smooth. Inflorescence globose to ovoid, terminal or axillary, sessile, or shortly pedunculate, c. 15 mm long; peduncle 2-3 mm long; involucral bracts few; outer bracts subulate to lanceolate; inner bracts becoming broader; cone scales broad, ±circular, ±acuminate, glabrous except at base, or sometimes shortly ciliate. Flowers 17-25 mm long, pink to mauve, turning whitish, villous. Pollen presenter c. 4.5 mm long, turbinate below the brush; brush c. 3 mm long, yellow, densely tomentose-villous. Cones ±globose, ovoid to ±elliptic, 15-25 mm long; peduncle (if present) 2-3 mm long. Nuts c. 3 mm long.
Grows on granite outcrops, and in sandplain scrub and heath in white to greyish sand, low shrubland in yellow to white sand and laterite, shrubland in medium brown deep sand or fine sandy silt.
W.A.: near foot of Mt Ragged, SW of the mountain, on track to Balladonia, Hj.Eichler 20410 (AD); Chillinup Rd, c. 10 km S of Stirling Range Natl Park, D.B.Foreman 1454 (AD, CANB, MEL, NSW, PERTH); Coramup Hill area, c. 30 km NE of Esperance, P.S.Short 2333 & L.Haegi (AD, MEL, PERTH); 22.5 km E of Mt Ragged Rd junction, on road to Israelite Bay, D.B.Foreman 1314 (CANB, MEL, NSW, PERTH); S of Ongerup, A.M.Ashby 2741 (AD).
Author - D.B.Foreman
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Cite this profile as: D.B.Foreman. Petrophile teretifolia, in (ed.), Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. https://profiles.ala.org.au/opus/foa/profile/Petrophile%20teretifolia [Date Accessed: 19 September 2025]