Definition of needlebush in US English:

needlebush

noun

Australian
  • 1Any of several shrubs or small trees of the genus Hakea (family Proteaceae) having stiff needle-like leaves, especially H. leucoptera and H. tephrosperma.

  • 2The nelia Acacia rigens, having needle-like phyllodes.

Origin

Late 19th century; earliest use found in Once a Month (Melbourne).