Tree to 25 m. Bark rough and scaly. Branchlets pale brown and pubescent to almost glabrous. Leaves in whorls of three to five, narrowly obovate to elliptic, 4–20 × 1–2.6 cm, upper surface dull green and pubescent, lower surface white and woolly, margins entire, apex obtuse or emarginate; petiole 0.4–1 cm long. Inflorescences 5–12 cm long, subtended by tomentose bracts 0.2–1 cm long. Flowers pale yellow; tepals 2.2–2.5 cm long, pubescent outside; style 2.7–3.2 cm long, straight or curved; old flowers falling quickly to reveal the ‘cone’. Follicles up to 60, narrowly elliptic, 0.7–1.5 × 0.3–1 cm, smooth and tomentose; follicles opening when mature, usually less than a year after flowering. Flowering January to July (Australia). George 1999. Distribution AUSTRALIA: from Proserpine, Queensland to Port Phillip Bay, Victoria. Habitat Coastal dunes and headland at sea-level to montane rain forest or cloud forest near the peaks of the Great Dividing Range. USDA Hardiness Zone 9. Conservation status Not evaluated. Illustration Rosser 1993, George 1996. Cross-reference K188.
The Banksia integrifolia species complex has been examined a number of times by taxonomists (Thiele & Ladiges 1994, George 1999, Evans et al. 2002). As currently defined, it includes three subspecies. A key to these, modified from Thiele & Ladiges (1994) and George (1999), is presented below.
Most adult leaves 17–26 mm wide
Most adult leaves 10–18 mm wide; New South Wales (New England National Park to Mt. Wilson); montane forest over igneous rock
Most leaves 4–10 cm long, ± flat, dull green above; New South Wales, Queensland, Victoria; coastal or low elevations over sedimentary rock
Most leaves 10–20 cm long, ± undulate, shining green above; Queensland (between Proserpine and Brisbane); coastal dunes or inland plains