Tripleurospermum inodorum
Description
- Daisy-like white flower with a yellow center at the end of each stem
- Alternate branching pattern.
- Ox-eye daisy, a similar-looking (also invasive) species has broader leaves.
- Other similar looking plants such as pineapple weed and wild chamomile have distinct odours when the leaves are crushed, while scentless chamomile has no smell.
- Mature plant has a bushier appearance than oxeye daisy.
Consequences of invasion
- Forms monocultures that reduce biodiversity.
- Reduce crop and pasture yield.
Introduction and spread
- This plant reproduces by seed only. As soon as a flower has formed, it can contain up to 1 million viable seeds. Preventing this plant from going to seed is an important management tactic.
- People transport seeds through contaminated soils, fill material, crop seed and animal feed or on clothing and equipment.
- Seeds can be dispersed naturally by wind and can float in the air for up to 12 hours
Management Options
- Spreads only by seed – mow to reduce seed production.
- Frequent tillage prevents seedlings from establishing.
- Hand pulling before the plant is in seed will prevent new infestations from spreading.
- Be cautious of seeds in wildflower seed mixes, check the contents before planting.
- Become PlantWise and learn about Grow Me Instead
- Clean equipment, clothing and gear before leaving an infested site
- Dispose invasive species properly at designated disposal sites
More information available:
ICBC Scentless Chamomile
Alberta Invasive Species Council – Scentless Chamomile