Rafflesia, the flower species which contains some of the world’s largest flowers, is at risk of extinction, scientists have warned in a new study. The study, co-authored by botanists from the ...

New study finds that most Rafflesia species, which produce the world’s largest flowers, face extinction. Lack of protection at local, national, and international levels means that remaining ...

Among the barren slopes of two mountains in Humboldt and Trinity counties are the last remaining colonies of a rare, brightly-colored wildflower that has been teetering on the edge of extinction for ...

Botanist Jerry Tiehm, the curator of herbarium at the University of Nevada Reno, discovered the plant that now bears his name more than 40 years ago. It was early in his career, and Tiehm was driving ...