Acacias of Australia

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Vachellia pachyphloia (W.Fitzg.) Kodela subsp. pachyphloia




Occurs in the N.T. from c. 13°S near El Sharana and the Stuart Hwy S to c. 16°S near Delamere Stn and E of Katherine in the Roper R. area, and in W.A. from Lombadina on the Dampier Peninsula E to Turkey Creek and the Pitt Ra. area.


Branchlets ±glabrous or with few scattered hairs. Leaves: main axis glabrous or with few hairs; rachis with minute jugary glands at base of all pairs of pinnae; pinnae (1–) 2–4 (–5) pairs; pinnules up to 31 pairs on pinna-rachis, (7–) 10–25 (–35) mm long (apical pinnules sometimes smaller), 1.5–7 (–9.5) mm wide. Pods glabrous or with a few scattered hairs when immature.


Grows in open woodland with grass understorey, open eucalypt forest or grassland, on gentle hillslopes, rocky outcrops, river levees and flats, in sandy clay, stony clay loam, lateritic and gravelly soils, on sandstone, limestone and granite.


W.A.: S Turkey Creek, near Telecom Tower, I.D.Cowie 1852 (BRI, CANB, DNA, NSW, PERTH); Bell Pass, between Derby and Gibb R., c. 2 miles [3.2 km] E of MRD Campsite, F.Balini B20 (PERTH). N.T.: c. 8 miles [12.9 km] NNE of El Sharana Mine, M.Lazarides 7867 (CANB, K, NSW, PERTH); 17 Mile Valley, Katherine Gorge Natl Park, M.D.Tindale 6029 & C.Dunlop (BRI, CANB, NSW, PERTH); 15 miles [24.2 km] SE of Katherine, M.Lazarides 6973 (CANB, K, NSW).


Specimens from the N.T. with small pinnules similar to subsp. brevipinnula appear to be intermediates, but they are ±glabrous and are possibly a variant of subsp. pachyphloia (e.g. J.Muspratt 87, NSW).

FOA Reference

Data derived from Flora of Australia Volumes 11A (2001), 11B (2001) and 12 (1998), products of ABRS, ©Commonwealth of Australia