Hakea laevipes Gand. subsp. graniticola Haegi, Fl. Australia 17B: 395 (1999)
T: 68 km E of Armidale on Grafton road, N.S.W., 20 Oct. 1989, W.Molyneux s.n.; holo: AD; iso: NSW.
Hakea dactyloides var. angustifolia Maiden,
[Hakea dactyloides auct. non (Gaertn.) Cav.: G.J.Harden, in G.J.Harden (ed.), Fl.
Erect much-branched bushy shrub, 0.3–3 m tall, lignotuberous. Branchlets densely dark brown tomentose or pubescent at flowering. Leaves almost linear to obovate-spathulate, sometimes falcate, 5–12.5 cm long, 4.5–30 mm wide, narrowly cuneate to attenuate at base, entire, acute or gradually to abruptly acuminate; longitudinal veins 3–5 above and below, usually more prominent below; secondary veins reticulate, conspicuous.
Inflorescence solitary with 28–46 flowers; pedicels glabrous. Perianth cream-white. Pistil 4.5–6.5 mm long; gland present or absent.
Fruit obliquely broadly elliptic to ovate, sometimes slightly curved, 2–3 cm long, 1.3–2.1 cm wide, not or obscurely beaked, apiculate. Seed obliquely broadly elliptic or obovate, 15–20 mm long; wing extending down both sides of body, more broadly and only partly or notched abaxially, blackish brown.
Distribution and ecology
Occurs in north-eastern N.S.W. and south-eastern Qld, usually in higher parts of the Great Dividing Ra., extending to the slopes (Warialda) and possibly the plains (Yetman).
Usually found in association with granite outcrops in coarse sandy soil, in heathy forest, sometimes near streams.
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
From graniticus, Latin for granitic, and cola, Latin for dweller, a reference to the habitat where this taxon is usually to be found.
How the infraspecific taxa differ
Ssp. laevipes has pubescent pedicels whereas those of ssp. graniticola are glabrous. Ssp. graniticola also has a more northerly distribution, occurring in the NC region of NSW and just extending into SE Queensland, while ssp. laevipes extends along the whole of the NSW coastline. As its name suggests, ssp. graniticola is usually associated with granite outcrops.
Part of the Conogynoides group recognised by Bentham and characterised by a conical pollen presenter, veined leaves, glabrous perianth and fruits without horns.
Within this section 12 species were assigned to the informal Undulata group by Barker et al. (1999). This group of Hakea species was combined morphologically because they all have simple flat leaves with 3-7 prominent longitudinal veins, 10-40 small flowers (with 3-10.5 mm long pistils) and decurved woody fruits.
Members of the group are H. ambigua, H. anadenia, H. dactyloides, H. elliptica, H. falcata, H. ferruginea, H. hastata, H. laevipes, H. loranthifolia , H. neurophylla, H. plurinervia and H. undulata from the eastern states and from SW WA. The newly described H. oligoneura (Nuytsia 19: 254 (2009) from the SW coast of WA belongs with this group.
H. laevipes was previously not generally distinguished from H. dactyloides , but is distinct primarily in being lignotuberous and also in the branchlets having a dark brown tomentum usually persistent to flowering time and beyond.
Subsp. graniticola is readily from subsp. laevipes and the closely related species H. dactyloides by its glabrous pedicels. This is rather ironic since the specific epithet, laevipes, was applied in the mistaken belief that the pedicels lacked hairs (see ssp. laevipes).
A record for the North Western Plains of N.S.W. is based on a non-flowering specimen from the
Qld: Wyberba, 1961, F.D.Hocking s.n. (BRI);
Link to PlantNET treatment.
Further information about growing this subspecies, or possibly H. dactyloides , together with an image of the inflorescence (as H. dactyloides ) can be found on the Australian Plants pages at http://asgap.org.au/hakea4.html