Vigorous summer annual up to 1m tall. Leaves dark green, alternate, oval up to 30cm long x 20cm wide. Margins coarsely and irregularly cut into pointed teeth. Large, white, trumpet-shaped flowers (Nov-Apr). Fruits egg shaped, covered with large spines, outer covering splitting open to reveal black or brown, kidney shaped seeds. Plant is foul smelling when crushed.
Gardens, roadsides, waste places, disturbed ground, and pasture
All parts, especially the seeds, are poisonous.
1. Pull up plants
2. Spray Oct - Feb (60ml triclopyr +10ml penetrant/10L).
3. Spray large plants spring - summer (60 ml Tordon BK/10L).
Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.