About Petrophile linearis R.Br.
Petrophile linearis, commonly known as pixie mops, is a shrub that typically reaches 0.5 to 1 metre (1 foot 8 inches to 3 feet 3 inches) in height. It has hairless branchlets and leaves. The leaves are narrow egg-shaped, with the narrower end oriented toward the base, 50 to 120 millimetres (2.0 to 4.7 inches) long, 1.5 to 10 millimetres (0.059 to 0.394 inches) wide, and usually curved. Flowers are arranged at the ends of branchlets or in leaf axils, forming stalkless, oval to spherical heads up to 25 millimetres (0.98 inches) in diameter. Many linear, tapering involucral bracts are present at the base of these heads. Individual flowers reach up to 35 millimetres (1.4 inches) in length, are hairy, and range in colour from greyish-pink or mauve to almost white. Flowering occurs from August to November. The fruit is a nut that becomes fused with other nuts in an oval head roughly 25 millimetres (0.98 inches) long. This species grows in woodland and heath habitats on the coastal plain and Darling Range, spanning from Jurien Bay and Eneabba to Yallingup.