Honey spurge. Also known as Euphorbia longifolia. Originated in Madiera and one of the largest species to be grown outdoors in England where it is only successful in sheltered warm gardens, although resistant to wind. Milky sap may cause blisters on hot days and this was used in the past to remove warts and moles and became known as Molewort. Plants listed in the Doctrine of Signatures based their curative properties on whether a plant looked like parts of the body or diseases; euphorbias bear fruit that look like warts or moles. In modern times people have believed this to mean that Euphorbias would help remove the animal variety of mole rather than disfigurements. Flowers are borne on stems alternate years.