Acacias of Australia

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Acacia pentadenia Lindl. subsp. pentadenia

Common Name

Karri Wattle, sometimes Catbush on account of its rather offensive smell




Predominates in tall forest dominated by Karri (Eucalyptus diversicolor), Red Tingle (E. jacksonii) and Yellow Tingle (E. guilfoylei); also occurs on margins of these forest types where Marri (Corymbia calophylla) dominates. Extends beyond the distribution of subsp. syntoma in all directions.


Shrub or tree 2-5 (-9) m high. Pinnae 2-5 (6-8) pairs; rachis 10-50 mm long; pinnules flat, with margins and/or apex sometimes slightly recurved, 2.5-6 mm long; gland at rachis base 0–3 mm below each pair of pinnae, sometimes absent from petiole. Inflorescences (1-) 2-4-headed racemes, (3-) 4-9 heads per axil; raceme axes 1-4 mm long; peduncles 8-20 mm long; heads cream to pale yellow.


W.A.: lower SW slopes of Mt Melville, Albany, 22 Oct. 1980, D.Davidson (PERTH); Big Brook, Pemberton, M.Koch 2343 (PERTH); 4.8 km E of Denmark towards Albany, B.R.Maslin 2945 (AD, DNA, E, L, MO, NSW, PERTH, SYD); S of Nannup, F.W.Went 118 (PERTH).


Acacia pentadenia subsp. pentadenia and A. subracemosa are the tallest members of the ‘A. browniana group’, they have the largest leaves, and both occur in Karri forest.

FOA Reference

Flora of Australia Project


Revised by B.R.Maslin & J.Reid