Family

Fabaceae

Distribution

Known only from the Chiddarcooping Nature Reserve, about 70 km NE of Merredin, W.A.

Description

Glabrous shrub normally to c. 2 m high. New growth resinous and slightly viscid. Phyllodes inclined to erect, incurved or ±straight and incurved only at base, ±terete, 2–4 cm long, c. 1 mm wide, excentrically mucronulate and often obliquely truncate, commonly uncinate to subuncinate, green, 4-nerved; nerves ±impressed, brownish and overlaid by a viscid exudate that commonly forms a narrow translucent ridge; gland at base of mucro. Inflorescences simple or comprising short 1- or 2-headed terminal or axillary racemes with axes 1–5 (–10) mm long; peduncles 5–14 mm long; heads globular, densely 20–25-flowered, golden, resinous. Flowers 5-merous; sepals united at base. Pods (slightly immature) narrowly oblong, to 7 cm long, 5 mm wide, slightly undulate, resinous. Seeds (slightly immature) longitudinal, oblong-elliptic; aril clavate.

Habitat

Grows on scree slopes of granitic breakaways, in woodland or low scrub.

Specimens

W.A.: Chiddarcooping Nature Reserve, S.D.Hopper 6413 (PERTH) and A.S.Weston 14103 (AD, BRI, CANB, K, MEL, NSW, PERTH).

Notes

A member of the ‘A. wilhelmiana group’, related to A. abrupta which has phyllodes with a basal gland, 1/4–1/2-united sepals and narrower, biconvex, reticulate pods.

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