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To answer this question, Dr. Gaume and her colleagues grew four different types of Sarracenia pitcher plants at their research station in Montpelier, France.

The lower-growing species Sarracenia purpurea is a particular favorite of hers, and it remains terrarium-size, so Buzo learned to simulate the needed season of chill from Ribbecke.

While some carnivorous plants are known to eat insects, the bell-shaped purple pitcher plant or Sarracenia purpurea is the first known in North America to consume amphibians, Newsweek reported.

Sarracenia flava, the yellow pitcher, has chartreuse flowers and pitchers, though often with marked venation and natural variation.

Sarracenia leucophylla, the white-top pitcher, is another southern pitcher and perhaps the showiest, with the white upper areas of the tubes contrasting strikingly with darker venation.