California Pitcher-plant, Cobra Lily, Cobraplant, Cobra-plant: Darlingtonia californica - Introduced from southwestern Oregon and northern California.
Yellow Pitcherplant, Yellow Trumpet: Sarracenia flava - Introduced from the SE United States.
White-topped Pitcher Plant: Sarracenia leucophylla - Introduced from the SE United States.
Northern Pitcher Plant, Purple Pitcher Plant: Sarracenia purpurea ssp. gibbosa (Synonyms: Sarracenia purpurea ssp. gibbosa, Saracenia purpurea var. ripicola, Sarracenia purpurea var. stolonifera, Sarracenia purpurea var. terrae-novae) - Introduced from the eastern United States.