Some pictures of a very interesting Calderdale speciality – the delicate Crocus nudiflorus – native to the Pyrenees but naturalised in our area perhaps since the Middle Ages. Taken today on the annual Halifax Scientific Society Autumn Crocus walk, led by Steve Blacksmith. A good year, with a host of over a thousand flowers seen in one of the traditional places, and a good day out as always.

Julian Birkhead