Acacia stipulosa F.Muell., J. Proc. Linn. Soc., Bot. 3: 119 (1859)
Shrub to 3 m high. Branchlets terete, hispidulous and glandular-puberulous. Stipules persistent, 3.5–4 mm long, partially connate, the free portion linear-subulate. Phyllodes crowded, ascending, inequilaterally broadly elliptic or triangular, 4–8 mm long, 2–5 mm wide, acute, pungent, coriaceous, puberulous (some hairs gland-tipped), with 3–4 or more distant, slightly raised nerves; gland 1 or 2, protruding from margin. Inflorescences simple, 1 per axil; peduncles (4–) 8–13 (–16) mm long, glandular-puberulous; heads globular, 8–10 mm diam., 30–40-flowered, golden; bracteoles exserted in buds, 3–4 mm long, pungent. Flowers with irregularly 5–11-lobed perianth; sepals 1/3–1/2-united; petals 2/3–3/4-united; petal lobes 7 or 8; stamens partially united. Pods linear, slightly raised over seeds, straight to curved, to 8 cm long, 5–8 mm wide, crustaceous, obliquely venulose, glandular-puberulous or glandular-pilose. Seeds oblique, elliptic, 4 mm long; aril apical.
Occurs in Upper Victoria R. area, at Winnecke Ck and near Gardiner Ra., N.T.; also from the far eastern Kimberley region of W.A., east of Halls Creek. Grows in shallow soil on sandstone, in shrubland and woodland.
Related to A. deltoidea which has regularly pentamerous flowers in contrast to the 5–11-lobed calyx and 7- or 8-lobed corolla of A. stipulosa , which also has the filaments united basally, a character-state that appears in the ‘A. lycopodiifolia’ group and other groups of the tropical region. Also related to A. froggattii .
Type of accepted name
Upper Victoria R., N.T., F.Mueller 71 ; holo: MEL; iso: K.
Racosperma stipulosum (F.Muell.) Pedley, Austrobaileya 2: 317, fig. 1A–D (1987). Type: as for accepted name.
F. von Mueller, Iconogr. Austral. Acacia dec. 7 [pl. 1] (1887); L.Pedley, loc. cit .; R.S.Cowan & B.R.Maslin, Nuytsia 7: 203, fig. 1A–B (1990).
W.A.: Mt Junction, Gordon Downs Stn, D.E.Albrecht 7694 (NT, PERTH); Osmond Plateau, I.D.Cowie 1906 (CANB, DNA, PERTH, MEL). N.T.: 74 km SW of Victoria R. HS, P.K.Latz 5329 (BRI, PERTH); 41.8 km S of Hooker Ck- Birrindudu- Tanami Junction, J.R.Maconochie 1741 (BRI, PERTH).