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Flora of Australia Online

Banksia elderiana F.Muell. & Tate, Bot. Centralbl. 55, 10: 317 (1893)
Swordfish Banksia

T: NE of Queen Victoria Spring, Great Victoria Desert, W.A., 17 Sept. 1891, R.Helms , on the Elder Exploring Expedition; lecto: MEL, fide A.S.George, Nuytsia 3: 364 (1981); isolecto: K, MEL, NSW, PERTH.

Illustrations: A.S.George, Banksia Book 150, 151, fig. 38, pl. 59 (1984); C.E.Rosser & A.S.George, Banksias III: pl. 52 (in press).

Shrub to 3 m, much-branched and bushy, with lignotuber. Stems tomentose. Leaves: petiole 1–2 cm long; lamina, rigid linear, 15–40 cm long, 12–20 mm wide, pungent; margins not recurved, pungently serrate; both surfaces tomentose, glabrescent except pits in lower surface. Inflorescence pendulous on short lateral branchlet, sometimes terminal, 4–6 cm long; involucral bracts tomentose. Flowers yellow, including styles. Perianth 27–29 mm long including limb of 4–5 mm, pubescent outside with glabrous limb, glabrous inside. Pistil straight, 24–28 cm long, pubescent on lower 1/4 to 1/2, otherwise glabrous; pollen presenter narrow, 2.5 mm long, smooth. Old flowers persistent. Follicles up to 30, broadly elliptic, 15–25 mm long, 8–14 mm high, 10–18 mm wide, smooth, velvety. Seed obovate, 23–27 mm long; seed body triangular, 10–12 mm long, 9–12 mm wide, smooth inside, rugose outside. Fig. 33 I.

Occurs in inland south-western W.A., between Narembeen, Lake King, Peak Charles and Bullabulling, with outliers in the south-western Great Victoria Desert. Grows in yellow sand, or in sandy loam over laterite, in kwongan or spinifex shrubland. Flowers Jan.–Mar., sometimes into winter. Map 222.

W.A.: 50 km E of Hyden, B.Barnsley 985 (PERTH); c. 53 km SW of Queen Victoria Rock, SW of Coolgardie, R.B.Filson 8899 (MEL, PERTH); c. 10 km W of Bodallin, A.S.George 17205 (AD, CANB, K, NSW, PERTH); c. 3 km S of Queen Victoria Spring, R.D.Royce 5289 (PERTH).

Fire-tolerant, sprouting from the lignotuber after fire. Closely resembles B lullfitzii which has large, erect flower spikes with golden brown, velvety flowers.

(A.S.George)

 

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