Calothamnus gibbosus

Calothamnus gibbosus is an erect, spreading shrub growing to a height of about 1.5 metres (5 ft) with thick, corky bark. Its leaves are stiff, circular in cross section, mostly 30–80 millimetres (1–3 in) long and taper to a prickly point. The flowers initially appear as warty growths on the branches. When they open, the flower cup (the hypanthium) is buried in the corky bark with only the petals and stamens extending beyond it. The petals surround 5 claw-like bundles of red stamens, each containing 7 to 11 stamens. Flowering occurs from May to December and is followed by fruits which are woody capsules, mostly buried within the corky bark.