Plant leaves come in many different shapes, sizes and complexities. Some leaves are large and smooth, while others are ...

How to rid your yard of poison hemlock? If you plan to remove the plant yourself, be sure to wear protective gear – such as goggles, face mask, gloves and a long sleeve shirt – before handling ...

For example, damage to leaves might be caused by a pathogen or grazing animals. The scientists will try to identify any environmental causes such as pollution that might be affecting the plants.