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Flora of Australia Online

Banksia serrata L.f., Suppl. Pl. 126 (1782)
Saw Banksia

Banksia conchifera Gaertn., Fruct. Sem. Pl. 1: 221 (1788), nom. superfl. ; Banksia mitis Knight, Cult. Prot. 112 (1809), nom. superfl. ; Sirmuellera serrata (L.f.) Kuntze, Revis. Gen. Pl. 2: 582 (1891); Isostylis serrata (L.f.) Britten, in J.Banks & D.Solander, Ill. Austral. Pl. Cook's Voy. 3: 83 (1905). T: Botany Bay, [N.S.W.], Apr.–May 1770, J.Banks ; lecto: BM, fide A.S.George, Nuytsia 3: 320 (1981); isolecto: B, C, NSW.

Banksia serraefolia Knight, Cult. Prot. 112 (1809), nom. superfl. based on Banksia serrata 'Andr.' = Banksia serrata L.f. and Banksia serratifolia Salisb. 

Banksia undulata Lindl., Edward's Bot. Reg. t. 1316 (1830). T: cultivated, Comte de Vandes ; lecto: CGE, fide A.S.George, Nuytsia 3: 320 (1981)

Banksia serrata var. hirsuta R.T.Baker, Proc. Linn. Soc. New South Wales 21: 462 (1896). T: Kelgoola, N.S.W., ?R.Baker ; n.v.

Illustrations: C.E.Rosser & A.S.George, Banksias I: pl. 1 (1981); A.S.George, Banksia Book 91–93, fig. 16, pl. 36 (1984).

Tree to 16 m, sometimes a robust shrub of 1–3 m, fire-tolerant. Bark thick, verrucose, friable, grey-brown. Stems tomentose and hirsute. Leaves: petiole commonly 1–2 cm long; lamina broadly oblong to narrowly obovate, 7–22 cm long, usually 2–4 cm wide, truncate, serrate; margins slightly recurved; both surfaces tomentose, glabrescent except pits in lower surface. Inflorescence terminal, 7–15 cm long; involucral bracts tomentose, falling early. Flowers creamy grey; styles cream. Perianth 38–42 mm long including limb of 7–8 mm, pubescent outside, glabrous inside. Pistil curved, 47–60 mm long, glabrous, or papillose towards base; pollen presenter fusiform with thickened base, 2.5–3 mm long, finely 8-ribbed. Old flowers persistent. Follicles up to 30, prominent, broadly elliptic, 25–35 mm long, 20–25 mm high, 15–22 mm wide, smooth, tomentose. Seed obovate, 30–34 mm long; seed body obovate, 10–12 mm long, 9–11 mm wide, shallowly pitted outside, verrucose inside. Fig. 26F, G.

A common, near-coastal species in eastern Australia, extending from Cooloola, Qld, south to Wilsons Promontory, Vic., with an outlying population at Sisters Ck in north-western Tas. Grows on consolidated coastal dunes and in sand over sandstone on the coastal plain and in the Blue Mtns; usually in woodland, but also as a low shrub in tall shrubland. Flowers Jan.–June. Map 193.

Qld: Cooloola, A.G.Harrold 270 (BRI); Bribie Is., 21 Mar. 1972, B.A.Lebler (BRI). N.S.W.: near Salt Ash, Hunter valley, R.Story 6550 (NSW). Vic.: 18 km W of Orbost, A.S.George 13084 (CANB, MEL, PERTH). Tas.: Two Sisters Reserve, W of Boat Harbour, A.S.George 14245 (HO, PERTH).

Follicles opening spontaneously or with fire. Related to B. aemula , a shrub or tree of similar aspect but with narrower leaves, creamy yellow flowers, a club-shaped pollen presenter and larger follicles. Fire-tolerant, sprouting by epicormic shoots.

(A.S.George)

 

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