Coptisine is an alkaloid found in Chinese goldthread ("Coptis chinensis"), greater celandine, and opium. Edward Thomas wrote a poem entitled "Celandine". Woodland herbs include lesser celandine and wild violet. The genus includes "Ficaria verna", known as fig buttercup or lesser celandine, and related species. Chelerythrine is a benzophenanthridine alkaloid present in the plant "Chelidonium majus" (greater celandine). One explanation is that Salendine refers to the greater celandine, part of the poppy family. Members of the genus include the buttercups, spearworts, water crowfoots and the lesser celandine. The aerial parts and roots of greater celandine are used in herbalism. It is based on the novel "Echoes of Celandine" by Derek Marlowe. The acrid yellow sap of Greater Celandine is used as a traditional wart remedy. The related plant bloodroot has similar chemical composition and uses as greater celandine. Other flowering plants present include primrose, snowdrop, and celandine. She commonly used Thyme, Greater Celandine, Ramsons, Speedwell, Calamus, Camomile, Nettle and Lady's Mantle. Celandine has a hot and bitter taste. Early bloomers are e. g. wood violet, lesser celandine und ivy-leaved speedwell.