This small tree has an upright smooth greyish trunk with spreading branches that form a rounded crown. It has dark green divided ferns-like leaves and the small ball-shaped, golden yellow flowers appear in a cluster during spring. 

Hardiness zones 9 to 10

Acacia decurrens is naturally found in Australia growing on the east coast and tablelands of New South Wales in open forests and along gullies in shale based soils. It prefers a protected sunny position and is drought and frost resistant.

Early Black Wattle is grown for its dense crown and its flowers. It is planted in parks and gardens along borders as a quick screen or as a windbreak. It is also grown as a small shade tree that attracts bird’s insects or butterflies and the timber is used for fire wood. It establishes in 2 to 4 years and lives for 8 to 10 years. The flowers are used in floral arrangements and the tree is excellent for new gardens. ID 289

Acacia (a-KAY-see-a)  decurrens (DE-Kur-enz)  

"Acacia": from Greek akazo - to sharpen (some species have sharp thorns); "decurrens": running down the stems (referes to the leaf stems).

Fabaceae (fab-AY-see-ee)
subfamily Mimosoideae 
Wattles