Acacia concolorans Maslin, Nuytsia 12: 334 (1999)
Harsh, intricate, sprawling or compact subshrub to 0.4 m high. Branchlets variably scabridulous, green, finely yellow-ribbed. Stipules spinose, 2 mm long, straight, thickened at base. Phyllodes distant, sessile, normally patent, oblong to narrowly oblong, flat but thick, sometimes drying quadrangular, 4–10 mm long, 1.5–2 mm wide, pungent, rigid, with colour and indumentum as on branchlets, 5-nerved, the 2-nerved adaxial margin 0.5–0.8 mm wide; midrib prominently raised when dry. Inflorescences rudimentary 2-headed racemes with axes <0.5 mm long; peduncles 1.5–3 mm long, glabrous, recurved in fruit; heads globular, small, 7–8-flowered, golden. Flowers 5-merous; sepals free. Pods narrowly oblong, variably curved, to 5 cm long, 4–5 mm wide, thinly coriaceous to crustaceous, glabrous. Seeds oblique, irregularly ovate-elliptic, 2.5–3 mm long, somewhat shiny, dark brown; aril 1/2 or more length of seed.
Occurs in the Marvel Loch- Parker Ra. area (SSE of Southern Cross) and at Karlgarin (c. 135 km due SW of Marvel Loch), south-western W.A. Grows in sometimes rocky clay or loam, in Eucalyptus woodland or Mallee shrubland.
Related to A. inamabilis which is readily distinguished by its glabrous, finely yellow-ribbed branchlets, larger phyllodes, c. 25-flowered heads, gamosepalous calyx and long pods, see B.R.Maslin, loc. cit ., for further discussion.
Type of accepted name
NE end of Parker Ra., 47.5 km SSE of Southern Cross, W.A., 6 Aug. 1983, B.R.Maslin 5353 ; holo: PERTH; iso: CANB, G, K, MEL, NSW, NY.
Representative collections
W.A.: c. 1 km W of Marvel Loch town centre, R.J.Cumming 2396 (BM, PERTH); Parker Ra., A.S.George 9434 (CANB, PERTH); Karlgarin, 16 km by road SW of Hyden, B.R.Maslin 5773 (MEXU, PERTH).
(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.
