Pitcher plants and snake, 18th-century artwork. The pitcher plants are the yellow pitcher plant (Sarracenia flava) and the purple pitcher plant (Sarracenia purpurea). Also present is an American or yellow lotus (Nelumbo lutea), the land snail Triodopsis albolabris, and a scarlet snake (Cemophora coccinea) eating a frog. This artwork is from 'Botanical and zoological drawings' (1756-1788) by US naturalist William Bartram (1739-1823). It is part of the collections held at the Natural History Museum, London, UK.