 The "Trymalium" species karri hazel "Trymalium odoratissimum", karri oak "Allocasuarina decussata" and "Bossiaea laidlawiana" are typical in these plant associations.They also occur at sheoak stands and paperbark swamps in jarrah forests.Marginal habitat defined by swamp peppermint "Agonis linearifolia", in association with wiry wattle "Acacia extensa", false baeckea "Astartea fascicularis", and karri hazel, is also favoured by the species.