Acacia perangusta (C.T.White) Pedley, Austrobaileya 1: 287 (1980)
Bushy shrub or tree to c. 7 m high. Branchlets slender, angled at extremities, dark reddish, glabrous. Phyllodes narrowly linear, 4–8 cm long, 1–1.6 mm wide, acute, occasionally obtuse-mucronate, thin, glabrous; midrib fine; lateral nerves absent or few and obscure; gland 7–17 mm above pulvinus, small but somewhat prominent and exserted, the pore transverse and commonly at distal end of gland. Inflorescences racemose; raceme axes 2.5–4 cm long, slender, glabrous; heads globular, small, 9–12-flowered, commonly lime yellow; peduncles 2–4 mm long, glabrous. Flowers mostly 5-merous; sepals united. Pods (immature) slightly constricted between seeds, convex on opposite sides over alternate seeds, to 7.5 cm long, 5 mm wide, moderately pruinose, glabrous. Seeds longitudinal.
Restricted to the banks of small streams 25–35 km S and SE of Brisbane, and on the Burrum R., c. 280 km N of Brisbane, south-eastern Qld.
Related to some forms of A. fimbriata but normally distinguished by phyllode dimensions, gland position and flower-head colour. Furthermore, A. fimbriata usually has hairy branchlets and fimbriolate phyllodes. A specimen from c. 14 km SW of Pialba, Qld ( L.Pedley 2154 , BRI) is somewhat intermediate between the two species in having somewhat pubescent branchlets and fimbriolate phyllodes c. 1 mm wide, fide L.Pedley, Austrobaileya 1: 288 (1980).
Similar to A. floydii in having thin, narrow phyllodes and pale coloured heads arranged in racemes.
Commonly cultivated as an ornamental in south-eastern Qld.
Type of accepted name
Castra, near Brisbane [near Victoria Point], Qld, Aug. 1927, C.T.White 3554 ; holo: BRI; iso: BRI, K, NY.
Acacia fimbriata var. perangusta C.T.White, Proc. Roy. Soc. Queensland 50: 72 (1939); Racosperma perangustum (C.T.White) Pedley, Austrobaileya 2: 353 (1987). Type: as for accepted name.
B.A.Lebler, Wildfl. SE Queensland 2: 62, fig. 2 (1981).
Qld: Eprapah Ck, c. 5 km W of Victoria Point, L.Pedley 798 (BRI); Burrum R., C.T.White 6286 (BRI).