Wild parsnip

How to Identify Wild Parsnip
Grows up to 1.5 metres tall.
The single green stem is two to five centimetres thick and smooth with few hairs.
Compound leaves are arranged in pairs, with sharply toothed leaflets that are shaped like a mitten.
Yellowish green flowers form umbrella-shaped clusters 10 to 20 centimetres across.
Seeds are flat and round.