A pitcher plant, the Nepenthes attenboroughii is believed to be the biggest meat-eating shrub in the world, dissolving its prey with acid-like enzymes.
It was discovered by a team of botanists, led by British experts Stewart McPherson and Alastair Robinson.
They found it on Mount Victoria in the Philippines after two Christian missionaries described seeing a large carnivorous "pitcher" there in 2000.
Attenborough, who has leant his name to a prehistoric lizard, a parasitic wasp, an echidna and a fossilised fish as well as the rat-eating plant is said to be happy with the dubious honour given to him by McPherson.
He said: "I like these oddball plants and this is a very dramatic one. It can hold up to two litres of water in its jugs. It is a very nice, complimentary thing for this young, intrepid explorer to do, and I am very touched that Stewart McPherson should have done it in my name."
The team found the plant in 2007 and eventually published their discovery in the botanical journal of the Linnean Society earlier this year, following a three-year study of all 120 species of pitcher plant.
McPherson said: "The plant produces spectacular traps that catch not only insects, but also rodents. It is remarkable that it remained undiscovered until the 21st century."
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