Acacia striatifolia Pedley, Austrobaileya 1: 141, fig. 8B (1978)
Single-stemmed shrub or tree to 8 m high. Bark corrugated, dark grey. Branchlets angular or flattened towards apices, dark red-brown, minutely pubescent, densely papillose; ridges not prominent. Phyllodes narrowly elliptic or elliptic, straight, 3.9–9.5 cm long, 10–40 mm wide, blue-green when fresh, acute to obtuse mucronulate, glabrous, papillose especially the base and pulvinus, with 3–5 slightly prominent, longitudinal nerves, the minor nerves 7–9 per mm, fine, very rarely anastomosing; gland 1, basal, to 2 mm above pulvinus, blackish. Spikes 3–5 cm long, deep yellow. Flowers 5-merous; calyx 0.6–0.8 mm long, sinuolate or sepals c. 0.1 mm long, with minute reddish brown papillose hairs and occasionally scattered hyaline hairs at apices, usually glabrous on tube; corolla 1.3–1.5 mm long, dissected to 1/2–2/3, with papillose apices; ovary glabrous or slightly mealy. Pods linear, straight-sided to slightly constricted between and raised over seeds, 3–8.5 cm long, 3–3.5 mm wide, chartaceous, glabrous. Seeds narrowly oblong, 4–5.5 mm long, brownish black.
Restricted to State Forests N of Chinchilla, Darling Downs District, Qld. Grows in shallow, gravelly, sandy soils, in eucalypt woodland or in dense stands in undulating or hilly country. Flowers Aug. & Sept.
Acacia striatifolia is allied to A. umbellata but differs in the shorter, broader phyllodes and shorter, more pubescent calyces. Also related to A. pubifolia and probably also to A. spania . The structure of the inflorescence suggests a relationship to A. blakei .
Type of accepted name
20 km NE of Chinchilla, Darling Downs district, Qld, Aug. 1973, L.Pedley 4128 ; holo: BRI; iso: A, CANB, K, L, MEL, PR all n.v.
Synonymy
Racosperma striatifolium (Pedley) Pedley, Austrobaileya 2: 356 (1987). Type: as for accepted name.
Illustration
M.Simmons, Acacias Australia 2: 273 (1988).
Representative collections
Qld: 9.6 km SW of Warwick, R.G.Coveny 1945 (A, AD, BRI, CANB, K, L, US); 45 km N of Chinchilla, on Auburn road, R.G.Coveny 6821 & P.Hind (A, BRI, K, L, LE, MEL, NSW, RDA, UC, US); 62.5 km from Chinchilla towards Mundubbera, N.Hall H77/65 (BRI, NSW); 50 km N of Warrego Hwy on Auburn road, A.N.Rodd 4166 & V.Hando (BRI, K, NSW).
(NSW)