WATTLE

Acacias of Australia

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Acacia unguicula R.S.Cowan & Maslin

Family

Fabaceae

Distribution

Known only from Ninghan Stn, between Wubin and Paynes Find in south-western W.A.

Description

Shrub 1–2 m or tree to 3 m high. Branchlets slightly ribbed, glabrous except appressed-puberulous in axils. Stipules persistent, spinose, ±recurved, 0.5–1.2 mm long. Phyllodes erect, narrowly oblong to oblong-oblanceolate or elliptic, straight or slightly curved, 2–4 cm long, 3–4 mm wide, acute, pungent, rigid, olive-green, glabrous, with 14–16 distant strongly raised yellowish nerves; internerve region green and bearing stomata; glands 1 or 2. Inflorescences simple, 2 per axil; peduncles 7–11 mm long, glabrous; heads globular, 5–6 mm diam., 24–34-flowered, deep golden. Flowers 5-merous; sepals free. Pods (immature) linear, to 6 cm long, 2 mm wide, slightly appressed-puberulous. Seeds not seen.

Habitat

Grows in rocky clay or loam in open scrub.

Specimens

W.A.: type locality, B.R.Maslin 4240 (CANB, K, MEL, PERTH).

Notes

Related to A. lineolata subsp. multilineata and A. patagiata but differing in its persistent, spinose stipules and very strongly raised nerves. Also similar to A. formidabilis.

FOA Reference

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

Author

R.S.Cowan