Acacia crenulata Cowan & Maslin, Nuytsia 12: 418 (1999)
Bushy, rounded or obconic shrub to 3 m high. Branchlets crenulate-resinous ribbed, glabrous. Phyllodes narrowly elliptic to linear-elliptic, 2–6 cm long, 2–6 mm wide, with acute, brown, shallowly recurved tip, coriaceous, glabrous, glaucous when young, ageing green, the margins yellowish and resinous (the resin commonly crenulate), the central nerve more evident than the numerous indistinct, closely parallel secondary nerves. Inflorescences simple, 1 or 2 per axil; peduncles 1–2 mm long, glabrous except for minute, reddish resin-papillae especially when young; heads globular, c. 4 mm diam., 20–25-flowered, golden. Flowers 5-merous; sepals united into slightly lobed cup. Pods linear, straight to shallowly curved, to 4.5 cm long, 3–3.5 mm wide, thinly coriaceous-crustaceous, glabrous, resinous but not viscid. Seeds longitudinal, oblong-ovate, c. 2.5 mm long, subshiny, mottled; funicle/aril yellow.
Known only from the Chiddarcooping- Walyahmoning Rock area and SE in an area c. 30 km W of Southern Cross and near Bullabulling, W.A. Grows mostly on rocky outcrops in heavy soils and sandy clay loam, in Eucalyptus wandoo low woodland and in association with Melaleuca uncinata , Allocasuarina campestris and other Acacia spp.
Perhaps having affinities with A. duriuscula which is most readily distinguished by its essentially uniformly-nerved phyllodes (the central nerve not or scarcely more pronounced than the rest) with non-resinous margins, longer peduncles, longer calyx relative to the corolla and papery pods.
Type of accepted name
5.5 km E of Carrabin, 61.3 km W of Southern Cross, on Great Eastern Hwy, 30 Mar. 1992, B.R.Maslin; holo: PERTH; iso: CANB, K, MEL, NSW, NY,PERTH.
Representative collections
W.A.: 5.6 km E of Carrabin towards Southern Cross, R.Cumming 2465 (K, PERTH); 5.6 km NW of Bullabulling towards Caenyie Rock, B.R.Maslin 1887 (PERTH); 0.3 km E of Walyahmoning Rock, c. 60 km NW of Bullfinch, K.Newbey 9553 (PERTH); along track c. 1 km SE of Chiddarcooping Hill summit, c. 70 km NE of Merredin, A.S.Weston 14486 (CANB, PERTH).
(RSC & 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.
