The Poison Hemlock (Conium maculatum) is a highly poisonous biennial herbaceous flowering plant in the Apiaceae family of carrot plants. It is also known as Poison Parsley.
It is native to Europe and north Africa.
All parts of the plant are toxic, including the seeds and roots.
Poison Hemlock grows to about 2 metres (8 feet) tall. It has a distinctive odour.
It has a smooth, green, hollow stem with 50 centimetre-long (20 inch-long) leaves. The flower is small and white, blooming in spring.
Photographed in the Botanical Garden, Paris, May 2021.
Photographer: Martina Nicolls