Family

Fabaceae

Distribution

Restricted to a small area near Coorow, south-western W.A.

Description

Shrub to 2 m high, diffuse, open. Branchlets slightly flexuose, densely silvery-sericeous between the often resinous ribs. Phyllodes ±sessile, moderately to strongly incurved, terete to subquadrangular, 5-11 (-14) cm long, 1-1.5 mm wide, rather stout, dull, green to grey-green, silvery sericeous when young, commonly glabrous at maturity, 8-nerved; nerves broad, flat-topped and each separated by a shallow dark-coloured furrow. Inflorescences simple, 1 or 2 per axil; heads sessile to subsessile, subglobular to obloid, 40–55-flowered, 7-10 mm long, 7-8 mm diam., golden; peduncles to 2 mm long; bracteoles acute. Flowers 4-merous; sepals c. 1/2-united. Pods linear, to 6 cm long, c. 2 mm wide, thinly crustaceous, sericeous; margins broad and glabrous. Seeds longitudinal, oblong-elliptic, 2.5-3 mm long, glossy, pale brown mottled yellow; aril small.

Habitat

Grows in gravelly brown sand or loam in heath.

Specimens

W.A.: near Coorow, July 1962, L.C.Chapman s.n. (BRI, PERTH).

Notes

Related to A. arcuatilis (which has generally shorter phyllodes and fewer-flowered heads) and A. lirellata subsp. lirellata (which has decurrent, deeply furrowed phyllodes). Also related to A. filifolia which is distinguished by its wispy, slightly taller stature and longer, generally thinner phyllodes.

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 J.Reid

A.R.Chapman, B.R.Maslin