The roots of plants exposed to the hormone β-cyclocitrical grew faster than roots not treated by the hormone.

The jigsaw-shape cells found in the epidermis of many plants may serve to reduce mechanical stress on cell walls.

Ancient fossils reveal how woodless trees got so big: by continuously ripping apart their xylem and knitting it back together.

Genomic analysis of an oak tree that lived during Napoleon’s time supports the idea that plants somehow avoid the accumulation of mutations in their stem cells.

CalTech researcher Elliot Meyerowitz describes how plant genetics influences growth and productivity.