The marsh ragwort looks like a healthier version of the common ragwort, slightly taller with bigger leaves and larger flowers. It is also just about as toxic as the common ragwort but is not statutorily controlled. However common sense says that if it became a problem then there is likely to be liability.

However as it is found in the marsh, where no domesticated animals feed, not that we would have them, and there is little or no chance of the marsh ragwort spreading to neighbours fields, it is not curtailed.