Family

Fabaceae

Distribution

Restricted to near the Blackwood R., NE of Augusta, south-western W.A.

Description

Prostrate shrub. Branchlets shortly pilose or shortly pilose and hirsutellous admixed. Stipules oblong to elliptic. Pinnae 1–3 pairs, 10–20 mm long; petiole 6–17 mm long; rachis 7–17 mm long; pinnules 3–5 pairs, narrowly oblong to elliptic or narrowly elliptic, 5–11 mm long, 3–5 mm wide, apiculate, green, hirsute on margins and below with tubercule-based hairs, with prominent midrib, with 2 or 3 additional minor longitudinal nerves, reticulate; gland on petiole, absent from rachis, sessile. Inflorescences simple, 1 per axil; peduncles 25–50 mm long, sparsely pilose-hirsute to hirsutellous; heads globular, c. 20-flowered, creamy white. Flowers 5-merous; sepals c. 2/3-united. Pods 1–3 cm long, 6–8 mm wide, reticulate, glabrous or subglabrous. Seeds (few seen) transverse to longitudinal, c. 3.5 mm long; aril narrowly clavate, ± as long as seed.

Habitat

Grows in gravel and sand in Jarrah (Eucalyptus marginata) forest.

Specimens

W.A.: c. 30 km E of Karridale, B.R.Maslin 4398 (PERTH, TLF).

Notes

Related to A. preissiana which is also prostrate and summer-flowering.

FOA Reference

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

Author

B.R.Maslin