Acacia anastema Maslin, Nuytsia 4: 383; 384, fig. 1, 387, fig. 2 & 408, fig. 14 (1983)
Obconical, resinous tree to 6 m high, with 1–3 trunks. Juvenile plants sometimes conifer-like. Bark longitudinally fissured on trunks, smooth on branches, grey. Branchlets terete, hoary towards apices. Young shoots pale citron-sericeous. Phyllodes linear, flat, curved, 11–32 cm long, 2–6 mm wide, finely acuminate, coriaceous, hoary when young, later only between veins, finely multistriate, sometimes 3 veins more prominent; gland obscure, basal. Peduncles 10–20 mm long, resinous-strigillose. Spikes single, axillary, 2–4 cm long, 6–8 mm wide, dense, golden. Flowers 5-merous; sepals free, sparsely ciliolate. Pods linear-terete, to 14 cm long, 2–3 mm wide, slightly chartaceous to crustaceous, glabrous to sparsely hoary. Seeds longitudinal, 5–5.5 mm long, grey-brown or brown.
Occurs on Yabalgo Plain, between Woodleigh Stn (2611’S, 11433’E) and Ellavalla Stn (2505’S, 11423’E), southern Carnarvon Botanical District, W.A. Grows on red sand dunes, often in pure stands. Flowers late July–Sept. Fruits late Nov.
Acacia anastema is a member of the ‘ A. doratoxylon group’, being closely allied to A. lasiocalyx which is distinguished by its broad, flat pods to 5 mm wide and calyces with united sepals.
Type of accepted name
35 km S of Gascoyne Junction on the road to Towrana Stn, W.A., 29 July 1981, B.R.Maslin 5004 ; holo: PERTH; iso: BM, BRI, CANB, G, K, MEL, NSW, NY.
Illustrations
B.R.Maslin, op. cit . 384, fig. 1 & 387, fig. 2; A.A.Mitchell & D.G.Wilcox, Arid Shrubland Pl. Western Australia 262 & 263 (1988).
Representative collection
W.A.: 29.3 miles [47 km] S of Gascoyne Junction, A.M.Ashby 4610 (AD, CANB, PERTH).
(NSW)