Wild oats (black oats) tend to grow in discrete patches at low to moderate densities (up to 100 plants/m2).
The seedling leaves are twisted anticlockwise, the opposite direction to wheat and barley. Wild oats have a large ligule with no auricles and the leaves tend to be hairy with a slight bluish hue. The emerging leaf is rolled.
Wild oat seeds are usually dark but can vary through to cream. Hairiness of seeds also varies.
Factors that make Wild oats a major weed:
Further detail about this weed including integrated weed management tactics that could be considered when developing a management plan can be found in the section on problem weeds in the Integrated Weed Management Manual.
Ecology and biology of common weeds are outlined in section 6 of the Integrated Weed Management Manual.