Acacia monticola J.M.Black

Resinous, normally obconic and multi-stemmed shrub or tree 2–5 (–8) m tall, rarely prostrate. Bark ‘Minni Ritchi’, dark brownish red aging grey. Branchlets invested with minute, straight, white, patent, fine hairs which are often not apparent to the unaided eye. New shoots bright green and viscid-resinous. Phyllodes elliptic to obovate, slightly asymmetric, (10–) 12–32 mm long, 5–15 (–20) mm wide; apex rounded-obtuse and mucronulate or rarely acute; green but often white (due to dry resin) over the nerves; indumentum as on branchlets; with 3–5 longitudinal nerves; minor nerves anastomosing to form a fine, open reticulum; gland to 3 mm above pulvinus. Inflorescences simple; heads globular to obloid or spicate to 2.2 cm long, light golden. Flowers 5-merous; calyx 0.6–1.4 mm long, dissected for ¼–½ its length; corolla striate, glabrous. Pods narrowly oblong, slightly indented, flat except raised over seeds, 1.8–10 cm long, (7–) 10–15 mm wide, coriaceous, brown, transversely reticulate, with indumentum as on branchlets, viscid (especially when young) with the resin sweetly aromatic; margins thickened and yellow. Seeds transverse or slightly oblique, broadly oblong to oblong-elliptic, 4–6.2 mm long, dark brown; areole small, closed, surrounding by a broad pale halo.

It is a tropical plant. This tree grows naturally in inland Australia. It will grow on most kinds of soil. It prefers an open sunny position. It is resistant to drought and frost. It mostly occurs on small mountains or hills. It suits hot arid places. It can grow in arid places.

Details of utilisation of Acacia monticola are given in J.W. Turnbull (ed.), Multipurpose Australian Trees and Shrubs 168–169 (1986).

It is grown from seed.