These unearthly things are greater horse tail spore bodies. They erupt out of the earth and look oddly like lawyers’ wig ink cap mushrooms.
They are in fact the last hurrah of a plant kingdom that once dominated the earth and towered over dinosaurs: tumbling down in their multitudes to form the Carboniferous geological layer that gave us coal and oil.
Now they are just one plant amongst many. A relative is an annoyingly tenacious weed in my garden and the silica in horse tail leaves made them handy pot scourers and wood polishers in other times. The greater horse tail likes damper places in woods and can indicate a spring line underground.
The spore bodies have no chlorophyll and die as soon as their ancient spores are shed. The leaves of odd whorls that inspired the concept of fractals come later and they can form great stands of plants.
They are oddities that momentarily surprise us before sinking back into the herbage
Maybe our reliance on the fossil fuels they left behind so long ago will seem equally surprising and unimportant one day. We can hope!