Mercurialis annua Annual Mercury
This annual herb grows from 10-70cm tall and is found in Europe, North Africa and the Middle East but is now found on several continents due to introduction. It has a difficult sexuality and is popular for sientific study. The male flowers are spiked in a cluster from the leaf axils and the female flowers are at the base of the leaf axils. It flowers from March to May, The fruit is a bristly capsule.