Petrophile wonganensis

Petrophile wonganensis is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a dense shrub with blunt, needle-shaped leaves, and more or less spherical heads of hairy, yellow flowers.

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Petrophile wonganensis is a dense shrub that typically grows to a height of 0.5–1.5 m (1 ft 8 in – 4 ft 11 in) and has hairy young branchlets and leaves that become glabrous as they age. The leaves are blunt, needle-shaped, 5–9 mm (0.20–0.35 in) long. The flowers are arranged at the ends of branchlets in sessile, more or less spherical heads up to about 15 mm (0.59 in) in diameter, with egg-shaped or elliptic involucral bracts at the base. The flowers are about 14–15 mm (0.55–0.59 in) long, yellow and hairy. Flowering occurs from August to January and the fruit is a nut, fused with others in a more or less spherical head 15–20 mm (0.59–0.79 in) in diameter.

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