Hakea amplexicaulis R.Br.

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Nomenclature

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Specimens

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Common Name

Prickly Hakea

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Description

Straggling or erect, single or few-stemmed shrub, 1-3 m tall, lignotuberous. Branchlets glabrous. Leaves narrowly ovate or ovate throughout, 3-18 cm long, 20-65 mm wide, amplexicaul, dentate with 12-30 2-6 mm long teeth per side, glabrous, glaucous. Inflorescence on short glabrous axillary peduncle, with c. 36-42 flowers; involucre 11-14 mm long; rachis 5-10.5 mm long, villous; pedicels 6-14 mm long, glabrous. Perianth 4-6 mm long, white, often pink-tinged. Pistil 8-14.5 mm long. Fruit obliquely ovate, 3-3.5 cm long, smooth apart from small protuberances along valve, glabrous. Seed obliquely ovate, 26-30 mm long, 9-11 mm wide; wing partly down one side of seed body only if at all.

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Phenology

Usually flowers (July-) Aug.-Oct. (-Dec.).

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Distribution

Occurs in south-western W.A. from Perth to Albany.

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Habitat

Grows in Jarrah forest in sand or ironstone gravel.

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Representative Herbarium Specimens

W.A.: Meelup Beach Rd, c. 1 km from turnoff from Dunsborough to Cape Naturaliste road, L.Haegi 2527 & P.Short (AD, MEL); Mundaring, R.Helms s.n. (PERTH); Gooseberry Hill, Darling Ra., A.Morrison s.n. (BRI); Helena Valley, J.Seabrook (PERTH).

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Nomenclature and Typification

Observatory Hill, Princess Royal Harbour, [W.A.], Dec. 1801, R.Brown 23 ; ?holo: BM (Iter Austral. 3353 — no other Brown duplicates found).

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Notes

The glabrous short shoot or peduncle in the leaf axil, on which the inflorescence sits, enables easy separation of this species from H. auriculata with which it has often been confused.

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Illustrations

A.S.George, Introd. Proteaceae W. Australia 67, pl. 95 (1984); J.W.Wrigley & M.Fagg, Banksias, Waratahs & Grevilleas 365 (1988).

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Source

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

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Characters

From the Acacia characters species list, created by on Mar 12, 2015.
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© Copyright Commonwealth of Australia, 2024
Last updated: System; Feb 20, 2020 12:40 Status: Legacy

Author - R.M.Barker, L.Haegi, W.R.Barker

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Cite this profile as: R.M.Barker, L.Haegi, W.R.Barker. Hakea amplexicaulis, in (ed.), Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. https://profiles.ala.org.au/opus/foa/profile/Hakea%20amplexicaulis [Date Accessed: 15 March 2025]