A short - lived (10-15 years), moderately fast growing shrub or small tree (1-5 m), occurring throughout the Australian dry country (average annual rainfall 125 - 300 mm, but it will grow in higher rainfall areas), at altitudes from 50 - 750 m. The leaves have moderate palatability and digestibility They are a good source of protein to cattle, poultry and humans. It is a good source of pollen for bees and the twigs exude a clear, tasteless gum which seems to have outstanding use in foods and industry. The gum is often colourless - an ideal quality.