Spiny, deciduous, sprawling shrub <15m high when supported by other vegetation. Leaves divided into many feathery oval grey-green leaflets. Thick short thorns on stems Yellow pea-like flowers (Jun-Nov), dark brown seedpods.
Disturbed forest, shrubland, fernland, open coastal forest. Tolerates drought, poor soils, moderate shade.
Seeds dispersed by rodents, birds, water, machinery.
Forms dense impenetrable thickets smothering other vegetation. Aggressive invader at Kermadecs. Not yet present in NZ.
Major potential pest, eliminate in all warmer areas. Follow up for 5+ years, replant with dense shading spp.
1. Dig out small plants.
2. Cut & stem paint larger plants (2g metsulfuron/1L water or 100ml Tordon BK/1L).
3. Spray spring -summer, (5g metsulfuron/10L or 60ml 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.