Acacia rothii F.M.Bailey, Queensland Agric. J. 6: 39, pl. 161 (1900)
Tree 6–12 m high. Bark rough, dark grey-brown. Branchlets angular at extremities, glabrous. Phyllodes narrowly oblong-elliptic, falcate, 15–25 (–30) cm long, 1.5–2.5 (–3.5) cm wide, obtuse, glabrous, with 2 or 3 prominent longitudinal nerves; secondary nerves anastomosing in open reticulum; main gland basal, 1 or 2 additional smaller glands often on upper margin. Inflorescences racemose; raceme axes 5–9.5 cm long, glabrous; peduncles normally 8–10 mm long, glabrous; heads globular, 5.5–6 mm diam., c. 50-flowered, pale yellow. Flowers 5-merous; sepals 3/4-united. Legumes flat, to 15 cm long, 3–4 cm wide, woody, transversely reticulately nerved, glabrous, tardily dehiscent; margins narrowly winged. Seeds transverse, oblong to elliptic, 8–12 mm long, slightly shiny, dark brown; funicle fleshy, folded beneath the aril.
Occurs on Cape York Penin. S to Palmer R., northern Qld. The N.T. occurrences given in B.R.Maslin & L.Pedley, W. Austral. Herb. Res. Notes 6: 104 (1982), were based on misidentifications of A. mimula . Grows in loam, sand and lateritic red earth in eucalypt communities, occasionally in vine thickets.
Type of accepted name
Mouth of the Batavia R., Qld, W.E.Roth s.n. ; holo: BRI; probable iso: NSW, fide P.G.Kodela, Telopea 7: 422 (1998).
Racosperma rothii (F.M.Bailey) Pedley, Austrobaileya 2: 355 (1987). Type: as for accepted name.
F.M.Bailey, loc. cit. ; J.W.Turnbull, Multipurpose Austral. Trees & Shrubs 190 (1986).
Qld: 15 33’ S, 142 42’ E, J.R.Clarkson 3779 (PERTH); Weipa, A.Morton AGM598 (PERTH).
(RSC & BRM)