Hemp Agrinomy is a tall pink flowered perennial which likes to grow in damp boggy places. It is very popular with insects especially butterflies.
The leaf resembles the leaf of Cannabis which is why it is called Hemp Agrinomy. The leaves are somewhat downy especially on the underside which gives them a grey green colour unlike the more full on green of the cannabis plant. Once when I was running a Field Study Centre in Norfolk some students who were studying there found some young plants of Hemp Agrinomy growing in the countryside and mistook it for Cannabis. ‘Alan’ they said ’We have found loads of plants growing over at Foulden common. Are they dope plants?’ ‘Hemp’ I said ‘Wow’ they said ‘there stacks of it, we could make a fortune back in London’ ‘Yes’ I said, ‘But its Hemp Agrinomy and you might make a fortune in London but quite quickly word would get round and you might be in big trouble’
This close up shows that individually the flowers are quite small with narrow petals but en mass they produce a useful platform for insects to land on and crawl about sampling the nectar. On this flower there is a black and yellow longhorn beetle. (Rutpela maculate)
The French name for this plant is Eupatoire-à feuilles-de-Chanvre