Acacia pallidifolia Tindale, Telopea 1: 82 (1975)
Tree 4–9 m high. Bark corky, fissured. Branchlets glabrous; younger branchlets often puberulous. Stipular spines 0.5–1.5 mm long, often inconspicuous or absent, to 10 mm long on young growth. Leaves: petiole 0.8–2.2 cm long, glabrous to puberulous or pubescent, mostly with a prominent gland at base of or just below lowest pair of pinnae; rachis (3.7–) 6.5–17.5 (–22) cm long, glabrous to puberulous or pubescent, mostly with a prominent, often broadly obovate gland at apex and sometimes at base of second pair of pinnae from apex; pinnae 6–18 pairs (often subopposite), 4–8 (–11.5) cm long; pinnules 13–34 pairs, oblong to narrowly oblong, lanceolate or elliptic to narrowly elliptic, sometimes slightly curved, (2.5–) 5–12 mm long, 1.5–3.5 (–4) mm wide, discolorous, glabrous or ciliolate-ciliate, with midnerve and lateral nerves visible and raised above. Inflorescences 1 or 2 in axils, simple or on a short axis which sometimes extends as new growth; peduncles (7–) 25–43 mm long, with involucel of bracts 1/3–1/2 way from base; heads globular, 16–23-flowered, cream-coloured to pale yellow. Pods slightly constricted between some or all seeds, flat except slightly raised over seeds, 8–13 (–17.5) cm long, 15–22 mm wide, coriaceous to thinly woody, longitudinally and obliquely nerved forming a ‘V’ pattern, almost glabrous or puberulous mainly along margins.
Occurs in N.T. S from near Darwin to the Victoria R. region, c. 1545’S. Grows in open forest, open woodland, low open woodland with grassy understorey and grassland, in chocolate brown soil, gravelly clay soil, rocky limestone soil, sandy red soil and alluvium, near watercourses, on drainage flats, sandstone outcrops and in undulating topography. Flowers recorded Sept. & Oct. Fruits Mar.–Oct.
Type of accepted name
Fitzmaurice R., N.T., arbuscula in campis apricis, Oct. 1855, F.Mueller 76, 75 ; lecto: MEL, fide M.D.Tindale, loc. cit .; isolecto: NSW; McAdam Ra., Oct. 1855, F.Mueller 75 ; paralecto: K, PERTH.
Synonymy
Acacia pallidifolia is based on the following: Acacia pallida F.Muell., J. Linn. Soc., Bot . 3: 147 (1859), partim , non Humb. et Bonpl. ex Willd. (1806).
Representative collections
N.T.: near Gerowie Ck, S.T.Blake 17166 (BRI, K); Arnhem Hwy, W of Point Stuart T/O, I.D.Cowie 352 (BRI, DNA, NSW); c. 60 miles [96.6 km] NE of Maranboy Police Stn, Lazarides & Adams 99 (BRI, CANB, K, L, MEL, NSW, NT, US); Kakadu Natl Park, 25.2 km S along Snake Plain track from the road running W from Kakadu Hwy towards Black Springs, A.V.Slee, L.A.Craven & K.Brennan 2903 (CANB, NSW); c. 65 km W of Victoria R. on the Victoria Hwy a few km from Dingo Springs, M.D.Tindale 10122 et al. (DNA, NSW, PERTH).
(PGK)
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.
