- Taxon
- Weed
- Gallery
Habitat: bank, clay, coast, dry, forest, gravel, lake margin, lowland, margin, moist, pasture, peat, riparian, roadside, sand, silt, stone, terrace, wasteland
Dispersal: Seed
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
References
Howell, C. 2008: Consolidated list of environmental weeds in New Zealand. DOC Research & Development Series 292: 42.