Alert List for Environmental Weeds
Department of the Environment and Heritage and the CRC for Australian Weed Management, 2003
ISBN 1 9209 3226 7
About the guide
Yellow soldier is on the Alert List for Environmental Weeds, a list of 28 non-native plants that threaten biodiversity and cause other environmental damage. Although only in the early stages of establishment, these weeds have the potential to seriously degrade Australia's ecosystems.
Yellow soldier was first recorded as naturalised south of Perth, Western Australia, in 1957, probably after escaping from a garden planting. It has since become a problem weed and is spreading through tuart (Eucalyptus gomphocephala) and banksia woodlands on sandy calcareous soils. It is most common in the southwest of the state, a region renowned for its high biodiversity and unique aesthetic qualities.
It could become a significant environmental problem because it replaces native herbs and annuals in both disturbed and relatively intact bushland. Apart from causing a loss of plant biodiversity, which destroys habitat and resources for native animals, infestations of yellow soldier can reduce the recreational enjoyment of bushland by people.