Legend has it that the crown of thorns
placed upon Jesus’ head
was twisted from the stems of this plant.
Then the governor’s soldiers took Jesus into the Praetorium and gathered the whole company of soldiers around him. They stripped him and put a scarlet robe on him, and then twisted together a crown of thorns and set it on his head. They put a staff in his right hand and knelt in front of him and mocked him. “Hail, king of the Jews!” they said. They spit on him, and took the staff and struck him on the head again and again. After they had mocked him, they took off the robe and put his own clothes on him. Then they led him away to crucify him.
Matthew 27:27-31 [NIV]