Acacia penninervis var. penninervis

Shrub or small tree, to 8 m high; branchlets glabrous. Phyllodes variable, oblanceolate to narrowly elliptic, narrowed at base, 5–13 cm long, 5–30 mm wide, usually more or less straight, rarely falcate, glabrous, green, infrequently glaucous, obtuse or acute; finely and pinnately veined, midrib and marginal veins prominent; gland 0.5–3 cm above pulvinus, margin often shallowly indented at gland which is connected to midrib by a fine oblique vein. Racemes sometimes in panicles; rachis 3–12 cm long, glabrous; peduncles 4–8 mm long, glabrous; heads globular, 15–30-flowered, cream to whitish. Flowers 5-merous; sepals united. Pods to 20 cm long, 10–17 mm wide, thinly coriaceous to firmly chartaceous; seeds longitudinal, oblong to elliptic, 6–7 mm long, slightly shiny, black, funicle dark red, aril clavate. Flowers Nov.–Feb.