DELAWARE, Ohio (WCMH) – An invasive insect that leaves a pattern on elm tree leaves was detected in Ohio for the first time this summer. Officials found a population of elm zigzag sawflies at the U.S.

As the infection takes hold, the spots grow and the centers of the spots turn pale gray, while their borders take on a red, brown or purple color. In the middle of the pattern, you may see small black ...

A Japanese plant species with a peculiar leaf pattern recently revealed unexpected insight into how almost all plants control their leaf arrangement. Leaves can be enjoyed for their shade, autumn ...

The spiral pattern of an Aloe polyphylla plant at the University of California Botanical Garden. Stan Shebs via Wikicommons under CC BY-SA 3.0 To the untrained eye, plants may appear to grow rather ...