Plant biologist Neelima Sinha's leaf study made the cover of this week's Science issue. Whether plants make complex, divided leaves like those of ferns or tomatoes instead of simple, single leaves ...

The leaves of legumes show a wide diversity of shapes, ranging from simple, pinnate and palmate compound leaves to higher-ordered complicated forms. The model legume Medicago truncatula provides a ...

Spring is in full bloom and trees are beginning to look green again. Learning how to identify trees in yards, neighborhoods and local parks provides insight into the diversity and relationships found ...