Acacia masliniana R.S.Cowan
Acacia masliniana R.S.Cowan
Fabaceae
Found mostly in an area bounded by Twin Peaks, Cue, Perenjori and Youanmi in south-western W.A., but with two outliers in the Kalgoorlie–Kambalda area, c. 300 km SE of Youanmi.
Shrub or tree 1–3 m high; trunks and branches somewhat gnarled. Bark fibrous, grey. Branchlets terete, appressed-puberulous at extremities, soon glabrous. Phyllodes ascending to erect, straight to slightly incurved, terete, 5–9.5 (–13.5) cm long, ±1.3 mm diam., subulate-pungent, rigid, grey-green to glaucous (green when young), glabrous or sericeous between the nerves, finely multistriate; gland normally 1.5–5 mm above base. Inflorescences simple, 2 per axil; peduncles 0.5–3 (–5) mm long, appressed-puberulous to glabrous; heads globular, 4–5 mm diam., 30–45-flowered, golden. Flowers 4- or 5-merous; sepals 1/4–2/3-united. Pods linear, raised over seeds, to 10 cm long, 3–4.5 mm wide, chartaceous, coarsely reticulate over seeds, glabrous. Seeds longitudinal, elliptic-oblong, 4.5–5 mm long, glossy, brown; aril apical, bright yellow.
Grows at margins of saline lakes, marshes and flats, in clay or loam, in open scrub.
W.A.: between Yuinmery and Cashmere Downs, J.S.Beard 6487 (NSW, PERTH); 45 km E of Perenjori, J.S.Beard 7364 (PERTH); western shore of Lake Lefroy, Kambalda, R.Coveny 8431 & B.Habersley (NSW, PERTH); about 3 km N of Mt Magnet towards Cue, B.R.Maslin 3579 (CANB, K, PERTH).
Acacia kalgoorliensis has similar phyllodes except that they have evident stomata in the internerve spaces; it also has fewer-flowered heads and free sepals. May superficially resemble A. donaldsonii or A. rigens.
Data derived from Flora of Australia Volumes 11A (2001), 11B (2001) and 12 (1998), products of ABRS, ©Commonwealth of Australia
R.S.Cowan
Minor edits by B.R.Maslin & J.Reid
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