Horseweed is a tall, upright weed common in vacant lots and neglected yards. Regular mowing keeps it out of lawns.
- Scientific name
- Erigeron canadensis
- Type
- Annual broadleaf
- Most visible
- May–September
How to Identify Horseweed (Marestail)
- Single upright stem
- Narrow, hairy leaves crowded along the stem
- Small white flowers in late summer
- Can grow several feet tall
When It Shows Up in Oklahoma Lawns
Germinates in fall or spring and bolts upward in summer.
How to Control Horseweed (Marestail)
- Mow regularly
- Pull young plants
- Clear neglected areas