Habitat: bank, clay, coast, dry, forest, gravel, lake margin, lowland, margin, moist, pasture, peat, riparian, roadside, sand, silt, stone, terrace, wasteland

Dispersal: Seed

Distribution from the Australasian Virtual Herbarium. CC-BY 3.0 AU
Distribution from the Australasian Virtual Herbarium. CC-BY 3.0 AU
 Recognition
  • an erect, glabrous annual up to 2 m tall with opposite, spreading branches,
  • its leaves are divided into 3-5 leaflets and arranged in opposite pairs.
  • its flowers are small, orange, and aggregated into flower heads 10-20 mm across.
  • its seeds are dark brown and flattene, 6-10 mm long, with two sharp barbs.
 Images
Image: P.B. Heenan © Landcare Research 2012
Image: P.B. Heenan © Landcare Research 2012
Image: P.B. Heenan © Landcare Research 2012
Image: P.B. Heenan © Landcare Research 2012
Image: Trevor James © Trevor James
Image: Trevor James © Trevor James
Weeds Key – interactive key to the weed species of New Zealand
 References
Howell, C. 2008: Consolidated list of environmental weeds in New Zealand. DOC Research & Development Series 292: 42.