The Australian blackwood,[6] blackwood acacia, or wattle, is a strong, upright tree, growing to a height of 75 feet and forming a well-shaped head. It is badly affected by citrus scale, and on this account its planting is sometimes prohibited.
[6] Acacia melanoxylon R. Br.
The black wattle[7] is a strong-growing round-headed tree that reaches a height of 40 feet and has dark-green leaves.
[7] Acacia decurrens mollis Lindl.
The green wattle[8] is a rapid-growing tree, reaching a height of 60 feet and forming a round head with finely cut leaves.
[8] Acacia decurrens Willd.
The silver wattle[9] is much like the black wattle except that its leaves and young branches are covered with a whitish down.
[9] Acacia decurrens dealbata F. Muell.