Auxin is the first plant hormone—or "phytohormone"—ever identified, with its discovery dating to the late 19th and early 20th ...

Tissues consist of a heterogeneous mixture of different cell types, complicating our understanding of their biological ...

The Unplugged Red and Pink salvias are full of excitement and exude passion. All can add a sense of pop to a garden.

How big they are: The smallest plants, known as desmids and picozoa, are single-celled algae that are less than 0.0004 inches ...