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Flora of Australia Online

Banksia aquilonia (A.S.George) A.S.George, Nuytsia 11: 22 (1996)

Banksia integrifolia var. aquilonia A.S.George, Nuytsia 3: 283 (1981); Banksia integrifolia subsp. aquilonia (A.S.George) K.R.Thiele, in K.R.Thiele & P.Y.Ladiges, Austral. Syst. Bot. 7: 406 (1994). T: Crystal Creek Natl Park, S of Ingham, Qld, 12 Apr. 1975, A.S.George 12973 ; holo: BRI; iso: CANB, NSW, PERTH.

Illustrations: A.S.George, Banksia Book 3rd edn, 52, 53, fig. 2C, pl. 21 (1996); C.E.Rosser & A.S.George, Banksias III: pl. 76 (in press).

Tall shrub or tree to 8 m tall, fire tolerant. Bark hard, fissured, grey. Stems pale rusty-pubescent, glabrescent. Leaves alternate, often crowded; petiole 5–12 mm long; lamina narrowly elliptic, 5–20 cm long, 6–12 mm wide, acute; margins slightly recurved, entire; upper surface glossy; lower surface pale, with a row of short, stiff brown hairs each side of midrib. Inflorescence 6–10 cm long; involucral bracts ovoid to linear, to 5 mm long, persistent until flowering, ferruginous-velvety. Flowers pale yellow, including styles. Perianth 25–29 mm long including limb of c. 4 mm, closely pubescent outside, glabrous inside. Pistil straight or slightly curved, 30–34 mm long, glabrous; pollen presenter scarcely thickened. Old flowers soon falling. Follicles up to c. 50, narrowly elliptic, 8–12 mm long, 5–9 mm high, 4–5 mm wide; valves semi-elliptic, smooth, tomentose, glabrescent. Seed obovate, 14–16 mm long; seed body cuneate, 8–10 mm long, 2–3 mm wide. 

Occurs in northern Qld, in coastal and montane areas from Mt Finnigan Natl Park to the Paluma Ra. and on Hinchinbrook Is. Usually on hillsides but also on creek banks and flats; in sand, usually granitic, in woodland and forest. Flowers Mar.–June. Map 176.

Qld: Mareeba, L.K.Bates 122 (BRI); Windin Ck, Windin L.A., A.W.Dockrill 77 (BRI, QRS); 26 km N of Cardwell, A.S.George 12981 (BRI, PERTH); Little Ramsay Bay, Hinchinbrook Is., P.Sharpe 1591 (BRI); Mt Spurgeon, C.T.White 10692 (BRI).

Fire-tolerant, sprouting by epicormic shoots. New growth pale brown. Differs from B. integrifolia in its scattered, narrowly obovate to lanceolate acute leaves 5–20 cm long and 6–12 mm wide, which are glossy above and have a row of short, stiff brown hairs each side of the midrib abaxially. The follicles are typically larger than those of B. integrifolia , usually opening when mature.

(A.S.George)

 

Data derived from Flora of Australia Volumes 16 (1995), 17A (2000) and 17B (1999), products of ABRS, ©Commonwealth of Australia