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Flora of Australia Online

Banksia ashbyi Baker f., J. Bot.  (1934)

T: near Yuna, W.A., about 1930, E.Ashby , Herb. A.Morris 2537 ; lecto: BM, fide A.S.George, Nuytsia 3: 355 (1981).

Illustrations: A.S.George, Banksia Book 138, 139, fig. 33, pl. 53 (1984); C.E.Rosser & A.S.George, Banksias III: pl. 56 (in press).

Shrub or tree to 8 m, with or without lignotuber. Bark smooth, grey. Stems tomentose-hirsute, glabrescent. Leaves: petiole 1–3 cm long; lamina broadly linear, 10–30 cm long, 2–4 cm wide, obtuse or acute; margins flat, deeply serrate; both surfaces tomentose, glabrescent except pits in lower surface. Inflorescence terminal, 6–15 cm long, 6–8 cm wide; involucral bracts tomentose, falling early. Flowers bright orange, including styles. Perianth 26–34 mm long including limb of 4–6 mm, closely pubescent outside, glabrous inside. Pistil straight or curved, 28–42 mm long, glabrous; pollen presenter somewhat thickened, 2.5–3 mm long, obscurely ribbed. Old flowers persistent for some years. Follicles numerous, elliptic to round, 8–15 mm long, 3–8 mm high, 5–11 mm wide, smooth, closely tomentose. Seed obovate, 15–20 mm long; seed body cuneate, 7–9 mm long, smooth or slightly rugose. Fig. 33A–C.

Widespread in W.A. near the central west coast from North West Cape to Coorow, but apparently now extinct south of Mullewa; also in the Kennedy Ra. east of Carnarvon. From the North West Cape to Coorow in deep red sand on dunes and plains, in shrubland; in the Kennedy Ra. on red dunes. Flowers chiefly winter. Map 218.

W.A.: SE of 5 Mile Well, Cape Ra., Y.Chadwick 2287 (PERTH); c. 50 km N of Murchison R., North West Coastal Hwy, R.B.Filson 8605 (MEL, PERTH); Peron Penin., C.A.Gardner & W.E.Blackall 549 (PERTH); c. 8 km W of Indarra, K.Newbey 2163 (PERTH); Quobba, R.A.Saffrey 668 (PERTH).

Related somewhat distantly to B. benthamiana which has shorter, narrower leaves with few short teeth and golden orange flowers in shorter spikes. Follicles usually opening with fire. Plants north of Carnarvon have a lignotuber from which they sprout after fire; those from Shark Bay southwards are killed by fire and regenerate from seed. There is sometimes a small secondary leaf lobe.

(A.S.George)

 

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