51�Թ�

Utricularia vulgaris, also known as a bladderwort, is a carnivorous plant that traps its prey using specialized hollow, water filled trap bladders.

But flowers with pollen concealed within their petals, such as the common bladderwort, decreased their UV pigment as temperatures went up—regardless of whether ozone levels changed.

In the plant kingdom, the tiny, rootless aquatic bladderwort plant, Utricularia gibba, captures insect prey in miniature traps using vacuum suction.

Still, officials worry it could spread to nearby waterways and outcompete native carnivorous plant species, Mr. Young said, such as bladderworts.

The bladderwort can trap dinner in less than a millisecond.