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Acacia glaucocarpa

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Acacia glaucocarpa Maiden & Blakely, Proc. Roy. Soc. Queensland 38: 120; pl. 19 facing page 122 (1927)

Shrub or tree 2.5–10 m high. Bark slightly fissured, grey or grey-brown, mottled, later rough at base. Branchlets terete, faintly ridged, glabrescent, tomentose towards apices. Young foliage-tips ferruginous, densely fawn- or grey-tomentose. Leaves blue-green, glaucous; petiole 1–3 cm long, bearing 1 tomentose orbicular gland close to basal pair of pinnae; rachis (1.5–) 3–10 cm long, with 1 similar gland at or near base of all or some pinnae, occasionally eglandular; pinnae (2–) 3–8 pairs, 3.5–11 cm long; pinnules 12–33 pairs, cultrate to narrowly oblong, narrowly elliptic or lanceolate, 5–14 mm long, 2–4 mm wide, with midvein closer to straight upper margin, 1 or 2 shorter veins (not reaching margin) between midvein and convex lower margin, glabrous or with sparse, long, white or fawn hairs on upper surface, subglabrous or with dense, white or fawn, crisped hairs beneath, apex obtuse or subacute. Inflorescences in terminal or axillary false-panicles. Heads 15–30-flowered, pale yellow or cream-coloured. Pods straight-sided, 5–13 cm long, 6.5–10 mm wide, subcoriaceous, blue-green or blue-black, +/- pruinose, sparsely fawn-puberulous.

Occurs in south-eastern Qld from c. 82 km W of Emerald S to near the N.S.W. border, common near Kingaroy and Ipswich. Grows in open forest or woodland or mixed scrub woodland, on sandstone or sedimentary rocks, often in deep soils. Flowers Feb.–July; fruits Sept.–Dec., July.

Cultivated in gardens and parks of inland tropical and subtropical areas, being moderately drought resistant but sensitive to frost.

Allied to A. polybotrya which is a shrub to 3 m high, flowering in July- Oct., with golden heads, 1–4 (–6) pairs of pinnae, 4–12 pairs of pinnules, moniliform pods and differently shaped funicle. The pinnules of A. glaucocarpa are more pubescent and more acute than in A. pruinosa which also occurs in south-eastern Qld.

Acacia glaucocarpa , A. deanei subsp. deanei , A. pedleyi and A. storyi are the most northerly occurring species in sect. Botrycephalae .

Type of accepted name

Ipswich, Qld, Nernst ; lecto: MEL, fide M.D.Tindale & P.G.Kodela (to be published in Appendix to Fl. Australia vol. 11, 2001) ; Burnett R., Qld, F.Mueller ; syn: MEL; S. part of the colony ['southern part of Queensland' on label], [ E.M .] Bowman ; syn: NSW; Limestone Hills, Qld, Mar. 1844, [ L .] Leichhardt ; syn: MEL.

Synonymy

Acacia glaucocarpa is based on the following: Acacia polybotrya var. foliolosa Benth., Fl. Austral . 2: 414 (1864). Type: as for accepted name.

Racosperma glaucocarpum (Maiden & Blakely) Pedley, Austrobaileya 2: 349 (1987). Type: as for accepted name.

Illustrations

J.H.Maiden & W.F.Blakely, loc. cit .; B.A.Lebler, Wildfl. SE Queensland 2: 10 (1981); M.Simmons, Acacias Australia 2: 307 (1988).

Representative collections

Qld: Eidsvold, Mar., Aug. & Nov. 1918, T.L.Bancroft (NSW); W edge of Carnarvon Gorge Natl Park, D.F.Blaxell 1536 & J.Armstrong (BRI, NSW); 14.5 k NNW of Murgon, L.A.S.Johnson 7081 & B.G.Briggs (BRI, K, NSW, US); Planet Ck, c. 30 miles [48.3 km] NE of Rolleston Township, R.Story 303 & G.A.Yapp (CANB, NSW); 4 miles [6.4 km] S of Murgon, M.D.Tindale s.n. (NSW52679).

(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