Family

Fabaceae

Distribution

Endemic to Mt Dangar in Goulburn R. Natl Park, c. 35 km WSW of Muswellbrook in the Upper Hunter Valley, N.S.W.

Description

Tree to 10 m high. Bark smooth, grey, with base later corrugated and blackish. Branchlets terete with 4–6 ridges c. 0.2 mm high, with numerous lenticels, glabrous. Young foliage-tips blackish brown, almost glabrous. Leaves green; petiole 0.7–4.7 cm long, glabrous or with sparse minute white hairs, with a gland just below lowest pinnae to median; rachis 1.5–6 cm long, with 1 (rarely 2) gland(s) at base of pinnae; interjugary glands absent; pinnae 2–6 pairs, 3–8 cm long; pinnules 14–30 pairs, often arranged alternately except towards apex, linear, (2–) 4–9 (–13.5) mm long, 0.25–0.4 mm wide, with 1 central nerve, ±glabrous, acute. Inflorescences mainly in axillary or terminal false-panicles. Peduncles 1–4 mm long, glabrous. Heads 12–26-flowered, golden. Pods ±straight, mostly straight-sided to barely constricted between seeds, 3–8 cm long, 5–7 mm wide, subcoriaceous (young), light brown to black, glabrous.

Phenology

Flowers Aug., Sept.; fruits Oct., Dec.

Habitat

Grows in woodland on the basalt summit and rocky slopes; dominant or co-dominant with Eucalyptus moluccana and E. albens.

Specimens

N.S.W.: Mt Dangar: 30 Aug. 1980, R.McRae (CANB, K, MEL, NSW); T.M.Tame 487 (CANB, K, NSW); T.Tame 1039 (NSW).

Notes

Allied to A. decurrens which has prominently winged sharp ridges on branchlets, and wider and more closely spaced pinnules.

FOA Reference

Data derived from Flora of Australia Volumes 11A (2001), 11B (2001) and 12 (1998), products of ABRS, ©Commonwealth of Australia

Author

Minor edits by B.R.Maslin & J.Reid

M.D.Tindale, P.G.Kodela