![](https://images.ctfassets.net/l2hapltrg3cz/WV7P9Riehfi96Qje9QoT4/919a5116a3b26cbde1864387064c3d01/charlock_01.jpg?fm=webp&w=1080&q=85)
Charlock
Sinapis arvensis
Sinapis arvensis
Importance
In spring cereals, competes strongly for soil nutrients. It also has an extensive root system.
1. Cotyledons are kidney-shaped.
2. An upright annual with characteristic yellow flowers.
3. The first true leaf has a broad, rounded tip and shallow indentations along its margins.