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Acacia jonesii

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Acacia jonesii F.Muell. & Maiden, Proc. Linn. Soc. New South Wales ser. 2, 8: 13; pl. 2 (1893)

Spreading, slender or straggling shrub 0.4–4 m high, often reproduces by suckering. Bark smooth, brown, green or grey to black, often mottled. Branchlets terete, with minute, grey or fawn, velvety hairs or glabrous; ridges 0.1–0.2 mm high. Young foliage-tips fawn or light brown. Leaves subsessile with basal pinnae arising immediately or rarely to 1 mm above pulvinus; rachis 1–5.5 (–7.5) cm long, with 1 minute, orbicular, hairy or glabrous gland at base of all or most pairs of pinnae except basal pinnae, interjugary glands absent; pinnae 2–11 pairs, decreasing in size towards leaf base, 0.5–4 cm long; pinnules dark green, very slightly paler beneath when fresh, 4–21 pairs, narrowly oblanceolate or narrowly oblong, 2.5–6 mm long, 0.8–1.8 mm wide, with numerous distinct stomates, often incurved when dry, with midvein closer to upper margin and 1 or 2 shorter veins from base, glabrous or puberulous mainly on margins, apex acute and reflexed. Inflorescences mainly in axillary racemes, sometimes in terminal false-panicles, axes flexuose, usually greatly exceeding the leaves. Heads 8–15-flowered, dark yellow; buds with spreading flowers. Pods straight-sided or with irregular slight constrictions between seeds, 2–8 cm long, 5.5–8 mm wide, thin, black or dark brown, sparsely to moderately clothed with minute, erect, fawn, grey or whitish hairs.

Occurs in N.S.W. from Yerranderie S to Goulburn, as far E as Nowra on coast. Grows in open forest or woodland or in exposed situations on dry stony ridges, on sandstone or Permian sedimentaries, in sandy or clayey soil. Flowers July–Oct.; fruits Oct.–Feb., rarely July.

Type of accepted name

Barber’s Ck, N.S.W., 20 Sept. 1892, H.J.Rumsey ; lecto: NSW, fide P.G.Kodela (to be published in Appendix to Fl. Australia vol. 11, 2001) ; Barber’s Ck, Oct. 1892, ?H.J.Rumsey ; ?syn: NSW.

Illustrations

F.Mueller & J.H.Maiden, loc. cit .; D.A.Morrison & S.J.Davies, in G.J.Harden (ed.), Fl. New South Wales 2: 387 (1991).

Representative collections

N.S.W.: Yerranderie, R.H.Cambage 3126 (NSW); Scotts Main Ra., R.Coveny s.n. (NSW97229, PERTH); Shoalhaven City, c. 8 km SW of Kangaroo Valley, K.Egerod 87357 (NSW); S of Mt Moolattoo, 9 miles [14.5 km] W of Barrengarry, Kangaroo Valley, L.A.S.Johnson (NSW65853).

(MDT & PGK)

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