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Acacia jibberdingensis

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Acacia jibberdingensis Maiden & Blakely, J. Roy. Soc. W. Australia 13: 29; pl. 17, figs 8- 13 (1928)

Jibberding Wattle

Usually a shrub or small tree 2- 4 m high. Branchlets angled and appressed-puberulous at least at nodes. Phyllodes patent to ascending, linear, straight to slightly curved, flat to terete, 15- 32 cm long, 1- 1.5 mm diam. or to 4 mm wide (flat form), acuminate, coriaceous, glabrous except margins commonly fimbriolate apically, prominently 8-nerved in all, 3-nerved per face when flat. Inflorescences simple, commonly 1 per axil; peduncles 6- 11 mm long, appressed-puberulous; spikes 20- 35 mm long, 6 mm diam., golden; bracteoles spathulate. Flowers 4-merous; sepals 1/2 to fully united. Pods submoniliform, to 21 cm long, 5- 7 mm wide, thinly coriaceous, glabrous. Seeds longitudinal, broadly elliptic, 4.5- 5.5 mm long, glossy, black; areole pitted; aril formed of two loops of fleshy funicle.

Scattered from Mullewa and Jingemarra Stn SE to Peak Charles Natl Park with a single collection from Kathleen Valley (c. 350 km E of Jingemarra Stn), south-western W.A. Grows mostly in granitic loamy sand near granite outcrops, usually in scrub and shrubland.

A collection from Mt Churchman ( A.M.George 38 , PERTH) is atypical in being recorded as a tree about 7 m high. Related to A. sessilispica which has consistently terete to slightly compressed, shorter phyllodes, sessile spikes and free sepals (or rarely joined basally); sometimes confused with A. longiphyllodinea which has, rigid, terete, many-nerved phyllodes and wider, denser spikes of pentamerous flowers; also related to A. stanleyi . The 4-merous flowers and the commonly fimbriolate-margined phyllodes of A. jibberdingensis indicate affinities to A. acuminata which has usually sessile spikes and phyllodes with more than eight nerves.

Type of accepted name

Jibberding, W.A., Sept. 1906, M.Koch 1339 ; holo: NSW; iso: K.

Illustrations

J.H.Maiden & W.F.Blakely, loc. cit. ; M.Simmons, Acacias Australia 2: 229 & pl. 19 (1988).

Representative collections

W.A.: Wydgee Stn, J.S.Beard 7412 (MEL, PERTH); 12.9 km S of Kathleen Valley, D.Churchill 10862 (PERTH); Peak Eleanora, Peak Charles Natl Park, K.Newbey 6374 (CANB, PERTH); Giles Rock, B.H.Smith 346 (PERTH); 25.7 km from Morawa on Yalgoo road, B.H.Smith 499 (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: Tuesday 11 September 2018