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Flora of Australia Online

Banksia speciosa R.Br., Trans. Linn. Soc. London 10: 210 (1810)
Showy Banksia

Sirmuellera speciosa (R.Br.) Kuntze, Revis. Gen. Pl. 2: 582 (1891). T: Lucky Bay, [W.A.], Jan. 1802, R.Brown ; lecto: BM, fide A.S.George, Nuytsia 3: 329 (1981); isolecto: BM, K, NSW.

Illustrations: C.E.Rosser & A.S.George, Banksias I: pl. 20 (1981); A.S.George, Banksia Book 105–107, fig. 20, pl. 40 (1984).

Shrub to 8 m tall, without lignotuber. Bark smooth, grey. Stems velvety. Leaves: petiole 5–10 mm long; lamina broadly linear, truncate, divided into 15–30 triangular lobes each side, 20–45 cm long, 2–4 cm wide; margins recurved; upper surface tomentose, glabrescent; lower surface white-tomentose. Inflorescence terminal, conspicuous, 4–12 cm long; involucral bracts velvety, falling early. Flowers cream to pale yellow; styles cream. Perianth 40–45 mm long including limb of 5–6 mm, hirsute outside, glabrous inside. Pistil curved, 40–50 mm long, hirsute; pollen presenter oblong, 4–5 mm long, kinked at middle, deep red. Old flowers persistent. Follicles up to 20, prominent, elliptic, 35–50 mm long, 20–30 mm high, 20–30 mm wide, with a thick suture, densely velvety. Seed obovate, 37–45 mm long; seed body obovate-cuneate, 10–14 mm long, 9–12 mm wide, smooth outside, muricate inside. Fig. 27B.

Occurs in W.A., along the south coast from East Mt Barren to Israelite Bay, with outliers near Point Culver. Grows in deep white sand on consolidated dunes, in tall shrubland; often dominant. Flowers throughout the year, with a peak in summer and autumn. Map 197.

W.A.: Gibson Soak, L.Diels 5328 (B); c. 8 km W of Israelite Bay, N.N.Donner 2831 (AD, PERTH); Culham Inlet turnoff, Ravensthorpe–Hopetoun road, R.B.Filson 9207 (MEL, PERTH); Duke of Orleans Bay, P.G.Wilson 8090 & K.Allan (PERTH).

Related to B. baxteri , another south-western coastal species, which has short leaves with large, flat triangular lobes, squat flower spikes and smaller follicles. Follicles usually opening with fire. Killed by fire and regenerates from seed.

(A.S.George)

 

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