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Darlingtonia californica Torr. (1853)
California Cobra Lily aka California pitcher plant or cobra plant
Synonym: Chrysamphora californica (Torr.) Greene (1891)
Like many other carnivorous plants of temperate regions, cobra lilies require a cold winter dormancy in order to live long-term. Plants die down to their rhizomes in frigid winters and will maintain their leaves in cool winters during their dormancy period. This period lasts from 3 to 5 months during the year, and all growth stops. As spring approaches, mature plants may send up a single, nodding flower, and a few weeks later the plant will send up a few large pitchers. The plant will continue to produce pitchers throughout the summer, however much smaller than the early spring pitchers.
Many carnivorous plant enthusiasts have succeeded in cultivating these plants, and have developed or discovered three color morphs: all green, all red, and red-green bicolor.
Wild-type plants are all green in moderate light and bicolor in intense sunlight.