Acacia barakulensis Pedley, Austrobaileya 5(2): 308 (1999)
Shrub to c . 2 m high; branchlets resinous, ribbed, sparsely pubescent. Phyllodes sometimes subverticillate, crowded, erect, +/- terete and straight, 10–22 (–28) mm long, 0.6–1 mm thick, somewhat irregularly tuberculate with a few hairs, an inconspicuous yellowish nerve on ab- and adaxial surfaces with (when dry) a distinct lateral furrow between them and usually some obscure longitudinal folds, mucro oblique (sometimes perpendicular), pulvinus 0.5–1 mm long. Inflorescences simple, 1 per node; peduncles 6–10 mm long, glabrous or minutely hairy, the base ebracteate; heads (20–) 25–35-flowered, c. 9 mm diam. Flowers 5-merous; calyx gamosepalous. Pods linear, straight, slightly contacted between the seeds and slightly convex over them, to c. 40 mm long, 4 mm wide, rather chartaceous, brown, resinous, reticulately nerved, marginal nerves prominent. Seeds longitudinal, 3.7–4.2 mm long, brown, areole darker; aril clavate.
Occurs only in the Barakula State Forest north of Chinchilla, Qld. It grows on sandy soils in eucalypt communities. Flowers Aug.–Sept.
Acacia barakulensis is a member of the ‘ A. johnsonii group’. It’s nearest relative is A. burbidgeae but it is most readily distinguished by its +/- terete, erect, generally shorter phyllodes.
Type of accepted name
Darling Downs District: Barakula State Forest, 2626’S 15031’E, Qld, 18 August 1971, L.A.Nielsen 15; holo: BRI.
Acacia barakulensis Pedley ex Lithgow, 60 Wattles of the Chinchilla and Murilla Shires: 46, t.32 (1997), nom. invalid., no Latin diagnosis or description.
Acacia sp. (Barakula L.A.Nielsen 15), L.Pedley (1997), in R.J.F.Henderson (ed.) Queensland Plants: Names and Distribution (Queensland Herbarium: Brisbane.)
Qld: 16–24 km N of Miles, V.Hando 143 (BRI); Woojie [sic] flower area, Panda Lane, c. 30 miles [48 km] NW of Barakula Forestry Station, Aug 1981 (flowers) & Nov 1981 (pods), G.Lithgow 913 (BRI).
(LP & BRM)
This species was noted as a variant under A. resinicostata in the Fl. Australia treatment of Acacia. The above account of the species is based on the original description, which was provided for use in WATTLE by L.Pedley.