Hơn 20% giống cây có nguy cơ tuyệt chủng

A new report on the state of the world's plants says that more than 2,000 new species were discovered last year alone including a three-metre-tall orchid and a sprawling insect-eating sundew plant from Brazil.

But the researchers from the Royal Botanic Gardens in London warned that a fifth of all plants were at risk of extinction – vulnerable to climate change, habitat loss or disease.