Acacia daweana Maslin, Nuytsia 4: 82; 84, fig. 5 & 101, fig. 11 (1982)
Low, spreading, often flat-topped shrub to 1.5 m high. Branchlets sometimes slightly resinous, sparsely appressed-puberulous to subtomentulose towards apices. Stipules persistent, 1–2 mm long. Phyllodes patent to ascending, narrowly elliptic with upper margin more convex, straight to slightly recurved, 3–7 cm long, 6–10 mm wide, acute, coriaceous, green, glabrous or subglabrous, with numerous closely parallel nerves, of which 1–3 more raised, and with occasional anastamoses. Inflorescences simple, 1 per axil; peduncles 5–10 mm long, sparsely puberulous; spikes 25–40 mm long, dense, light golden; receptacle sparsely puberulous. Flowers 5-merous; sepals united almost to their apices. Pods narrowly oblong, constricted between and raised over seeds, to 4 cm long, 5–7 mm wide, obliquely nerved, sparsely short-pilose, slightly viscid. Seeds oblique, elliptic, c. 3 mm long, dull, light brown; funicle/aril convoluted, subterminal, yellowish.
Known only from the Mt Bruce area and c. 15 km N of Juna Downs Stn in Hamersley Ra. Natl. Park, W.A.. Grows in rocky red loam on lower scree slopes, especially along creek lines among spinifex.
May have originated as a hybrid between A. effusa and A. hamersleyensis . The bark of A. daweana is incompletely of the ‘Minni Ritchi’ type which characterises the first putative parent and is intermediate in some ways in other characters. Both presumed parents occur in the limited range of the species.
Type of accepted name
6 km N of Marandoo (which is just S of Mt Bruce) on the road to Tom Price, 16 July 1980, B.R.Maslin 4682 ; holo: PERTH; iso: CANB, K, NY.
Illustrations
B.R.Maslin, op. cit . 84, fig. 5.
Representative collections
W.A.: E side of conical hill 3 km W of Mt Bruce, C.G.Dawe 210 (PERTH); 15 km N of Juna Downs Stn on road to Wittenoom, B.R.Maslin 4628 (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.
