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Acacia hadrophylla

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Acacia hadrophylla R.S.Cowan & Maslin, Nuytsia 10: 214 (1995)

Dense to moderately open, domed to obconic shrub normally 0.3–0.5 m high. Branchlets tomentulose and with black micro-hairs. Phyllodes oblong-elliptic, incurved, mostly 0.7–2.5 cm long, 2.5–5.5 mm wide, obtuse or subobtuse with small mucro, rigid, thick, glabrous except for tomentulose pulvinus, with (4-) 5–7 prominent, distant, yellowish nerves; stomata present on dark-coloured interstices between nerves; gland single. Inflorescences simple, 2 per axil; peduncles 0.5–2 mm long, glabrous; basal peduncular bract cucullate, rostrate, 2.5–4 mm long; heads globular, 3–3.5 mm diam., 14–25-flowered, golden. Flowers 5-merous; sepals free. Pods linear, constricted between seeds, curved, 1.2–2.2 cm long, 2 mm wide, crustaceous, puberulous with red, glandular(?) papillae; marginal nerve distinct, paler. Seeds longitudinal, oblong-elliptic, 2.5–3 mm long, brown-black; aril terminal.

Scattered from Mt Holland (c. 85 km due NE of Hyden) and Lake King E to Kumarl and Scaddan (which are located between Norseman and Esperance) in south-western W.A. Grows in loam or loamy clay and sand, in open scrub and shrubland mallee.

A member of the ‘ A. densiflora group’, nearest A. undosa which has much thinner, linear to oblanceolate-linear phyllodes with more nerves and undulate pods. There is also a superficial resemblance to A. amyctica .

Type of accepted name

Between Bremer Ra. and Lake King- Kumarl road., W.A., 23 Sept. 1983, B.R.Maslin 5430 ; holo: PERTH; iso: CANB, K, MEL, NSW, NY.

Representative collections

W.A.: 20 km E of Scaddan, P. van der Moezel 244 (PERTH); One Mile Rock Reserve, B.R.Maslin 4484 (CANB, PERTH); 13 km SW of Mt Day, K.Newbey 5296 (BM, PERTH); 4 km NE of Peak Charles, Peak Charles Natl Park, K.Newbey 5407 (MO, PERTH); 22 km WNW of Roberts Swamp, c. 53 km W of Grass Patch, K.Newbey l8141 (PERTH).

(RSC)

WATTLE Acacias of Australia CD-ROM graphic

The information presented here originally appeared on the WATTLE CD-ROM which was jointly published by the Australian Biological Resources Study, Canberra, and the Department of Parks and Wildlife, Perth; it was produced by CSIRO Publishing from where it is available for purchase. The WATTLE custodians are thanked for allowing us to post this information here.

Page last updated: Friday 13 December 2019