Parthenium weed
Parthenium hysterophorusSee it - Report it
Early detection is vital to stop Parthenium weed becoming established in South Australia.
If you see this weed, please report it to the National Pest Alert Hotline (Freecall) 1800 084 881.
Weed profile
- Annual
- Herb
- Reportable
- Allergenic
- Toxic to livestock
- Habitat: pastures
Impact
Competitive in pasture. Toxic and allergenic to livestock and humans.
Description
- Erect summer-growing annual to 2 metres tall.
- Leaves pale green, deeply divided leaves with fine hairs.
- Small, white daisy flowerheads in clusters on stem tips.