Family

Fabaceae

Distribution

A poorly known species in the Torrens Creek-Pentland area; also near headwaters of Gilbert R., Qld (fide L.Pedley (1978), Austrobaileya 1: 210).

Description

Slender shrub to 3 m high. Branchlets pendulous, angled at extremities, soon terete, glabrous. Phyllodes linear to linear-oblanceolate, incurved, (4–) 6–12 (–15) cm long, 2–5 (–8) mm wide, narrowed towards base, acute to gradually- or abruptly-acuminate (with mucro to 2 mm long), thinly coriaceous, glabrous, with 3 indistinct to slightly raised main nerves and normally with few rather obscure anastomosing minor nerves in between; gland 0–2 mm above pulvinus, 1 or 2 additional glands often present. Inflorescences simple or rudimentary 1‑headed racemes with axes 0.5–1 mm long, 2–4 per axil; peduncles (2–) 3–5 (–8) mm long, to 9 mm in fruit, glabrous; basal bract persistent; heads globular, 4.5–5 mm diam., 20–30-flowered yellow. Flowers 5-merous; sepals c. 1/2-united. Pods narrowly oblong or sometimes linear, alternately raised over and slightly constricted between seeds, to 9 cm long, 7-8 mm wide, thinly coriaceous, ±pruinose, glabrous, faintly reticulate, marginal nerve evident. Seeds (immature) longitudinal, exarillate; funicle thickened throughout its length.

Habitat

Grows on sandstone hills.

Specimens

Qld: 34 km from Pentland towards Torrens Creek, C.Gittins 2524 (BRI); ‘Rangeside’ 5–18 km E of Torrens Creek, R.H.Rebgetz 778 (BRI).

Notes

Related to A. simsii which has phyllodes normally broadest about the middle (when not linear), generally longer peduncles and narrower pods, and arillate funicles.

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

R.S.Cowan, B.R.Maslin