Hakea erecta Lamont, in B.Lamont et al., J. Linn. Soc., Bot. 94: 440 (1987)
T: 4 km SE of Pingrup, W.A., 18 Sept. 1975, K.Newbey 4802; holo: PERTH; iso: MEL n.v.
[Hakea falcata auct. non R.Br.: C.D.F.Meisner, Hooker's J. Bot. Kew Gard. Misc. 4: 209 (1852); C.D.F.Meisner, in A.L.P.P. de Candolle, Prodr. 14: 414 (1856), only with respect to Drummond 2: 333]
[Hakea roei auct. non Benth.: J.W.Wrigley & M.Fagg, Banksias, Waratahs & Grevilleas 398 (1989)]
Erect rounded shrub, 0.9–2.6 m tall, non-sprouting. Branchlets sericeous at flowering. Leaves flat, twisted at base, linear to narrowly obovate, 4–9.7 cm long, 2.5–5 mm wide, glabrescent or sparsely sericeous; marginal veins prominent; longitudinal veins 1 (rarely 3) above, 3 below.
Inflorescences a solitary axillary umbelliform raceme, with 16–24 flowers; pedicels pink, glabrous. Perianth pink or white. Pistil 6.5–8 mm long; gland a small flap, 0.3–0.5 mm high.
Fruit ovate-elliptic, 1.2–3 cm long, 0.9–1.4 cm wide, scarcely beaked but apiculate. Seed obliquely ovate, 8.5–13 mm long; wing extending broadly down one side of body, narrowly down other, dark greyish brown with black patches and streaks.
Distribution and ecology
Occurs widely in inland south-western W.A., from Mingenew and Perenjori south to Hyden and Kulin and east towards Coolgardie; grows in sandy loam or deep sandy soil, sometimes over laterite, in heath or heathy mallee.
To plot an up to date distribution map based on herbarium collections for this species see Australia's Virtual Herbarium. Localities outside the native range may represent cultivated or naturalised records.
Derivation of name
The specific name referes to the erect or semi-erect nature of the stems, leaves and fruits (Lamont 1987).
Part of the Conogynoides group recognised by Bentham and characterised by a conical pollen presenter, veined leaves, glabrous perianth and fruits without horns. Barker et al. (1999) recognised a number of informal morphological groups within the section.
One of these was the Ulicina group. This group of 21 Hakea species was combined morphologically because they all have simple flat leaves or leaves which are apparently terete but when looked at in cross section are clearly angled; these angled leaves are longitudinally furrowed and often referred to as sulcate. Furthermore the group has inflorescences with 6-80 small flowers (with 3-18 mm long pistils) and erect woody fruits.
Members of the group are H. aenigma, H. carinata, H. costata, H. cygna, H. dohertyi, H. erecta, H. gilbertii, H. invaginata, H. lehmanniana, H. marginata, H. meisneriana, H. mitchellii, H. myrtoides, H. pycnoneura, H. repullulans, H. rigida, H. scoparia, H. stenocarpa, H. sulcata, H. subsulcata and H. ulicina, mostly from southern WA but also from south-eastern Australia.
The 'needle-leaved form' of H. erecta recognised by Lamont et al., loc. cit., appears to be based on a specimen of H. rigida (q.v.). Hakea rigida is similar in flower size, colour and number per inflorescence but differs in having leaves pentagonal in cross-section and evenly black seed wings.
The specimens referred to by Wrigley & Fagg, op. cit. p. 411, under Hakea sp. nov. aff. falcata R.Br. appear to be forms of H. erecta.
A typographical error occurs in the citation of the holotype of H. erecta by Lamont et al., loc. cit., with the collecting number of the Newbey specimen being given incorrectly as 4902. This is a specimen of Astroloma. The holotype of H. erecta is K.Newbey 4802.
W.A.: Tammin, R.J.Cranfield 581 (MEL, NSW, PERTH); c. 128 km W of Coolgardie along Great Eastern Hwy to Southern Cross, and c. 1 km W of State Vermin Proof Fence, L.Haegi 2683 (AD, MEL); Cowcowing, M.Koch 1047 (AD, HO, MEL, NSW).
Link to FloraBase treatment of this species for WA.
More photographs of this species can be seen on the Australian National Botanic Gardens site.
J.W.Wrigley & M.Fagg, Banksias, Waratahs & Grevilleas 385 (1989), as H. roei;
J.Young, Hakeas of W. Australia, Botanical District of Avon 15, 44 (1997).
I. Holliday, Hakeas. A Field and Garden Guide 76-7 (2005)
J.A..Young, Hakeas of Western Australia. A Field and Identification Guide 41 (2006)