Acacia obtusata Sieber ex DC., Prodr . 2: 453 (1825)
Blunt-leaf Wattle , Obtuse Wattle
Spindly shrub rarely exceeding 2.5 m high. Branchlets dark reddish, glabrous. Phyllodes oblanceolate to narrowly oblong-oblanceolate, sometimes narrowly elliptic, straight to shallowly incurved, 4–11 cm long, 5–16 mm wide, narrowed at base, obtuse, sometimes acute, coriaceous, lightly glaucous, glabrous; midrib and marginal nerves rather prominent; lateral nerves obscure; gland 0.5–4 cm above pulvinus, sometimes touching midrib or connected to it by a fine oblique nerve, the margin often indented at gland. Inflorescences 5–14-headed racemes; raceme axes 1.5–4.5 cm long, glabrous; peduncles 3–6 mm long, substout, glabrous; heads globular, subdensely 15–27-flowered, golden; bracteole laminae transversely elliptic, dark brown, densely white-fimbriolate. Flowers 5-merous; sepals c. 5/6-united; petals 1-nerved. Pods to 10 cm long, 7–12 mm wide, chartaceous, blackish, glabrous. Seeds longitudinal, oblong to elliptic, 5 mm long, dull, black; aril clavate.
Extending from the Budawang Ra. N to near Mt Coricudgy, N.S.W. Scattered on tablelands, in sand, in dry sclerophyll forest, sometimes in moist sites.
Allied to A. hamiltoniana . The flowers and bracteoles of these two species are similar to those of A. hakeoides .
Type of accepted name
Fl. Novae Hollandia [N.S.W.], F.Sieber 441 ; holo: G-DC; iso: A, FI, G, MO, NSW, NY, STR.
Illustrations
J.H.Maiden, Forest Fl. New South Wales 5: pl. 177 (1912); L.F.Costermans, Native Trees & Shrubs SE Australia 319 (1981); T.Tame, Acacias SE Australia 141, fig. 151, pl. 151 (1992).
Representative collections
N.S.W.: Mt Houghton, Budawang Ra., B.G.Briggs 4771 (NSW); Mt Coricudgy area, 64 km E of Rylstone, K.Moxon 76/6 (NSW); Barbers Ck, Aug. 1898, H.J.Rumsey (A n.v ., AD n.v ., B n.v ., BRI n.v ., CANB, E n.v ., L n.v ., MEL n.v ., MO n.v ., NSW, NY n.v ., PE n.v ., PERTH, TL n.v ., UC n.v ., US n.v ., Z n.v .).
(BRM)
The information presented here originally appeared on the WATTLE CD-ROM which was jointly published by the Australian Biological Resources Study, Canberra, and the Department of Parks and Wildlife, Perth; it was produced by CSIRO Publishing from where it is available for purchase. The WATTLE custodians are thanked for allowing us to post this information here.
