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Kangaroo acacia is a perennial shrub up to approximately 3m tall with leaves reduced to flattened stalks and spines up to 10mm long. Clusters of many yellow flowers are borne between July-October, followed by elongated seed pods containing 5 seeds per pod.
This species grows well in open or disturbed sites including roadsides, farms, scrubland, banks, coastal areas, forest margins and waste places. It tolerates drought, salt, frosts, low fertility soils and a range of soil moisture levels, as well as partial shading.
Kangaroo acacia is an invasive species that forms dense thickets, excluding native species and changing the soil ecology. It reaches reproductive maturity rapidly and produces numerous long-lived seeds.
This species can also be succeeded in tall canopy habitats by taller native species (not in kauri or tanekaha forest). Regeneration can be sped up by slashing, selective spraying or replanting of shade-creating species. Clear roads, quarries. Maintain pest and livestock control, as plant is not readily grazed.