Acacia craspedocarpa F.Muell., Australas. Chem. Druggist 2 (1 March 1887)
Hop Mulga
Rounded shrub branched from base, to 4 m tall. Branchlets scurfy between resinous ribs; young growth dark red-brown. Phyllodes orbicular to broadly obovate or oblong, 15–25 mm long, 8–12 mm wide, rounded at tip, mucronulate, thick, usually 3 major longitudinal nerves, with a fine reticulum between them, the nerves often capped with greyish resin. Inflorescences single in axils; peduncles 12–18 mm long; spikes 12–20 mm long. Flowers 5-merous; sepals oblong, c.1 mm long, stout, free; corolla c. 2 mm long; stamens 3.5–4 mm long; ovary with minute appressed hairs. Pods not stipitate, flat, straight, massive, 4–6 cm long, 2–2.5 cm wide, including prominent wings c. 3 mm wide, woody, yellowish, prominently reticulately nerved, glabrous, usually resinous, dehiscent. Seeds transverse, oval, c. 8 mm long, c. 6 mm wide; aril small, terminal, cupular, yellow.
Common in south-central W.A. (Gasgoyne, Murchison and Goldfields district , fide A.A.Mitchell & D.G.Wilcox, Pl. Arid Shrublands W. Australia 269 (1988)), usually in and along watercourses on loamy or clayey soils, sometimes forming thickets.
Part of the A. aneura complex of species, possibly most closely related to A. minyura , but distinguished by the massive pods, wide calyx lobes and particularly by the reticulate nervature of its phyllodes. Hybrids with A. aneura and A. ramulosa occur frequently.
Type of accepted name
L. Austin, W.A., n.d ., H.S.King s.n. ; lecto: NSW, fide B.R.Randell, J. Adelaide Bot. Gard. 14: 127 (1992).
Synonymy
Acacia euphleba W.Fitzg., J. Western Australia Nat. Hist. Soc. 2: 16 (1904). Type: near Millys Soak, near Cue, Murchison R. District, W.A., Sept. 1903, W.V.Fitzgerald s.n. ; holo: NSW.
Illustrations
L.Diels & E.Pritzel, Bot. Jahrb . 35: 306 (1904); A.A.Mitchell & D.G.Wilcox, Pl. Arid Shrublands W. Australia 269 (1988).
Representative collections
W.A.: Annean, c. 50 miles [80 km] NE of Cue, S.L.Everist 9149 (BRI); 3 miles [5 km] N of Mt Magnet towards Cue, B.R.Maslin 4559 (BRI, PERTH); 10 km NW of Albion Downs HS, R.J.Chinnock 972 (AD, PERTH).
(LP)
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.
