Acacia zatrichota A.S.George, J. Roy. Soc. Western Australia 82: 102 (1999)
Erect shrub to 1.5 m high. Stems densely pilose with white hairs. Stipules spreading, subulate, 0.5–2.8 mm long, brown. Phyllodes 16–20 per whorl, erect, straight to incurved, terete, 8–18 mm long, with an oblique mucro 0.2–0.4 mm long, pilose with spreading yellowish hairs, obscurely 1-grooved adaxially. Peduncles 23–30 mm long, sparsely pilose with white hairs. Heads c. 30-flowered. Flowers 5-merous; calyx 0.7–0.8 mm long, the lobes short, narrow, smooth, glabrous; corolla glabrous except for hirsute, smooth to faintly striate lobes. Pods sessile, linear, not viscid, not seen mature. Seeds 3–6 per pod, ?longitudinal, not seen mature.
Occurs in the Purnululu (Bungle Bungle) Natl Park and Winnama Gorge, south-eastern Kimberley, W.A. Grows in dissected sandstone, with open woodland or shrubland usually with Triodia . Flowers June–July.
A distinctive species with large hairy phyllodes and large heads. The glabrous bracts and calyx are characteristic.
Type of accepted name
Above Picaninny Gorge, Bungle Bungle Natl Park, W.A., 4 July 1989, K.A.Menkhorst 475 ; holo: PERTH; iso: DNA, MEL.
W.A.: Bull Ck, Bungle Bungle Natl Park, G.N.Cowie 924 (DNA); Swamp Ck, Winnama Gorge, S.J.Forbes 2527 (BRI, MEL).