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Acacia gracilifolia

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Acacia gracilifolia Maiden & Blakely, J. & Proc. Roy. Soc. New South Wales 60: 191; pl. 18, figs 9–14 (1927)

Graceful Wattle

Resinous, slightly viscid shrub 1–2 m high. Branchlets slender, glabrous; ribs yellow. Phyllodes filiform, straight or shallowly incurved, compressed, 5–10 cm long, c. 1 mm wide, obliquely and excentrically mucronate, green, glabrous, the 2 nerves per face separated by a groove; glands 1–4, the lowermost 1–1.5 cm above pulvinus. Inflorescences simple, (1- ) 2 (- 3) per axil; peduncles 5–8 mm long, puberulous; basal bract persistent; heads globular to obloid, 23–26-flowered, light golden. Flowers 5-merous; sepals 3/4–united to almost their apices. Pods linear, raised over seeds, to 7 cm long, c. 2 mm wide, firmly chartaceous. Seeds longitudinal, oblong, 3.5–4 mm long; aril small.

Occurs in S.A. from Wilmington to the Telowie Gorge area near Port Pirie. Grows in gorges and on rocky hillsides, often in shallow loam in open Eucalyptus woodland scrub.

A member of the ‘ A. wilhelmiana group’ and similar to A. barattensis in its long, narrow, flat but thickened phyllodes with two obscure nerves on each face. Acacia barattensis , however, has 4-merous flowers and obscurely 3-nerved phyllodes lacking a longitudinal medial groove.  Thought to hybridize with A. paradoxa in S.A..

Type of accepted name

Flinders Ra., S.A., 1900, W.Gill ; holo: NSW207699; iso: AD (Fragment of holo).

Illustrations

J.H.Maiden & W.F.Blakely, loc. cit .; M.Simmons, Acacias Australia 2: 119 (1988); D.J.E.Whibley & D.E.Symon, Acacias S Australia 2nd edn, 279 (1992).

Representative collections

S.A.: Wilmington, B.Copley 3714 (AD, NSW); Mambray Ck, Mt Remarkable Natl Park, D.J.E.Whibley 4326 (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: Tuesday 11 September 2018