Acacia longifolia is a shrub to small tree. Along the branches are alternate phyllodes (leaf stems/petioles that appear leaf-like) (80 -130 mm x 3 - 8 mm). Numerous small, puffy, pale to golden yellow flowers appear in cylindrical spikes (July to August) which are then followed by seeds.
Seen near Shark Point in Nielson Park (Sydney National Park), Vaucluse. Shot sent to me by my daughter.
"Acacia longifolia" is a species of "Acacia" native to southeastern Australia, from the extreme southeast of Queensland, eastern New South Wales, eastern and southern Victoria, and southeastern South Australia.