Carnivorous plants can obtain nutrients (mainly nitrogen) by actively attracting, capturing, and ultimately digesting a diverse array of small animals. Carnivorous plants are mainly placed into five major categories based on their trap type, including the widely recognized pitfall trap in pitcher plants, snap trap in Venus flytraps, sticky flypaper trap in sundews, suction trap in bladderworts, and the eel-trap or lobster-trap in corkscrew plants. “The lack of conclusive evidence has prevented researchers from classifying these Saxifraga species as true carnivorous plants.” Chemical tests using a fluorescent marker showed that Saxifraga candelabrum’s glandular hairs produce phosphatase, a digestive enzyme also found in other carnivorous species, while a related, non-trapping Saxifraga species showed no such activity. The scientists also sequenced the plant’s genome and compared it with those of other carnivorous species that evolved traps independently, including sundews and the South African shrub Roridula.