Family

Fabaceae

Distribution

Known only from the type locality in north-eastern Qld.

Description

Shrub to 1 m high, prostrate. Branchlets slightly angular, red-brown, resinous towards apices, squamulose. Phyllodes tetragonous-terete, sometimes flat in section, 9–22 cm long, 0.8–1.6 mm wide, glabrous, squamulose, with 1 strong nerve at each angle and 1 or 2 less obvious median nerves on abaxial and adaxial faces, with 8 or 12 nerves in all, with 2 or 3 prominently raised nerves per face when flat; gland 1, basal, small. Spikes 1.2–2.2 cm long, golden. Peduncles 2–13 mm long, glabrous. Flowers 5-merous, rarely 6-merous, widely spaced; calyx 0.6–0.9 mm long, dissected for 1/4–1/3, squamulose; corolla 1.7–2.5 mm long, dissected for 2/3–3/5, glabrous; ovary glabrous. Pods linear, tapered at both ends, scarcely moniliform, flat (old valves tightly coiled), 6–10.5 cm long, 5–8 mm wide, subwoody, reticulate, glabrous; margins fawn, prominent. Seeds longitudinal, elliptic, 4.8–5.4 mm long, light brown; pleurogram thin, closed, with wide halo; areole paler brown.

Phenology

Flowers July. and Oct.

Habitat

Grows in brown loam, over Argentine schist, in open eucalypt woodland.

Specimens

Qld: near Argentine Mine, N.Hall 82/13 & E.M.Jackes (NSW).

Notes

Closely related to A. guymeri which has consistently flat phyllodes with less prominently raised nerves and paler coloured spikes.

FOA Reference

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

Author

Dr M.D.Tindale and Dr P.G.Kodela with the assistance of M.Bedward, S.J.Davies, C.Herscovitch, D.A.Keith and/or D.A.Morrison

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