... the pocket, success in love being indicated in proportion as they lost or retained their freshness. Browne alludes to the primrose, which "maidens as a true-love in their bosoms place;" and in the North of England the kemps or spikes of the ribwort plantain are used as love-charms. The mode of procedure as practised in Northamptonshire is thus picturesquely given by ... — The Folk-lore of Plants • T. F. Thiselton-Dyer