Shrub to 3 m high, spreading, resinous. Bark smooth, dark grey. Branchlets angular to almost flattened, red-brown or light brown, glabrous or occasionally puberulous; ridges resin-crenulated. Phyllodes narrowly elliptic or rarely ±oblanceolate, straight or slightly curved, 2.5-7 cm long, 6-18 (-23) mm wide, slightly oblique at base, with a small knob-like mucro at apex, with slightly undulate margins, ±glabrous, with 3 prominent longitudinal nerves reaching base and 2-4 subprominent parallel nerves; minor nerves 4-6 (-8) per mm, rarely anastomosing or indistinct from fine longitudinal wrinkling when dry; gland 1, ±conspicuous, basal. Spikes 1.5-5 cm long, bright lemon-yellow. Flowers widely spaced, 5-merous; calyx 0.5-0.75 mm long, cupular, dissected by less than 1/5, glabrous; corolla 0.8-1.3 mm long, dissected to 1/2-2/3, with petals with prominent midrib; ovary glabrous. Pods narrowly oblanceolate, basally narrowed, flat, 2.8-7.2 cm long, 4.5-8.5 mm wide, crustaceous to thinly woody, brown, paler over seeds, obliquely reticulate, glabrous, opening elastically from apex; margins and seed-partitions thick. Seeds oblique, broadly oblong-elliptic, 4-6 mm long, brown or dark brown; areole open, depressed, dark brown; funicle-aril narrowly conical.
Grows in stony, skeletal, sandy soils over laterite, sandstone, quartzite or granite, in monsoon forest along the coast or on the ranges in savannah grassland or eucalypt woodland.
Home