deformed plant

deformed plant

Observation - deformed plant - UK and Ireland. Description: I came across this deformed plant with a flat, ribbon-like stem in coastal dunes in Northumberland. Is this the result of a genetic mutation or of some environmental effect? It has successfully flowered apparently and it would be interesting to see what

I came across this deformed plant with a flat, ribbon-like stem in coastal dunes in Northumberland. Is this the result of a genetic mutation or of some environmental effect? It has successfully flowered apparently and it would be interesting to see what form its progeny have (though I rather doubt I will ever find them!). It is hard to tell what species the plant is but I am open to suggestions! I am not sure why the picture is displaying sideways - the original is in portrait format...apologies to everyone who gets a crook in the neck looking at it!