Blackthorn (Prunus spinosa) flowering in the hedge at Invernorth. Just as I was photographing this a flight of about nine swans flew over, trumpeting loudly as they passed low over the fields. Whenever Grey Granite sees blackthorn blossom she is reminded of the legend of the blackthorn on Glastonbury Tor which is said to have sprung from a staff, belonging to Christ, brought to Britain by Joseph of Arimathea after the crucifixion. All the blackthorns in the country are reputed to be off shoots of this one plant.