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Acacia newbeyi

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Acacia newbeyi Maslin, Nuytsia 1: 423; 424, fig. 11 & 492, map 11 (1975)

Shrub 0.3- 1 m high. Branchlets coarsely pungent, finely appressed-puberulous. Leaves glabrous; pinnae 1 pair, 1.5- 2.5 mm long; petiole to 0.5 mm long; pinnules mostly 2 pairs, oblong to obovate, 2- 5 mm long, 1- 2 mm wide, asymmetrically narrowed at apex, slightly thickened, green to subglaucous. Inflorescences rudimentary 1-headed racemes with axes <0.5 mm long; peduncles 4- 10 mm long, glabrous; heads globular, 10- 13-flowered, pale yellow. Flowers 5-merous; sepals 1/2- 2/3-united. Pods 2- 3 cm long, 3- 4 mm wide, very thinly coriaceous, finely appressed-puberulous. Seeds oblong to elliptic, 2- 2.5 mm long, glossy.

Occurs at Nyabing, near Boxwood Hill and W of Ravensthorpe, south-western W.A. Grows in laterite or sand over laterite in tall, sometimes open, shrubland, usually dominated by mallee species.

Precise affinities to other members of sect. Pulchellae are unclear, fide P.Guinet et al. , Bot. J. Linn. Soc . 80: 53- 68 (1980). A distinctive species on account of its unijugate leaves with minute petioles and few pinnules, and its small, few-flowered heads.

Type of accepted name

1.5 miles [2.5 km] N of Nyabing, W.A., 17 Aug. 1973, K.Newbey 3727 ; holo: PERTH; iso: B, CANB, K, MEL, NSW, NY, PERTH.

Illustrations

B.R.Maslin, loc. cit .

Representative collections

W.A.: 35 km SE of Ongerup, K.Newbey 9497 (PERTH) and N.Stevens KRN9497-1 (MELU, PERTH); c. 35 km due W of Ravensthorpe, P.G.Wilson 7110 (CANB, PERTH).

(BRM)

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: Thursday 22 June 2023