Behind the stillness of desert landscapes, cacti appear to be changing in unexpected ways. The cactus on your windowsill may ...

Scientists discover that fast-changing cactus flowers, not size or pollinators, are behind the rapid evolution of new cactus species.

Plants are usually seen as stationary life forms, quietly supporting environments. But plant communities and populations are ...

A member of the aster and sunflower family found in Isle Royale National Park is one of the world's newest-described flower species. Small with delicate yellow blades, Packera insulae-regalis -- Latin ...

Sometimes newfound flower species are lurking where scientists least expect to see them — in parks, gardens and even in planters on balconies. That's where researchers in Japan recently identified a ...