On the cover Arctium tomentosum Mill. (Asteraceae) – woolly burdock – a double-faced summer flowering plant. It is native to Eurasia, where it has long been considered as an edible plant and a rich source of secondary metabolites for the pharmaceutical industry. Insect visitors eagerly consume nectar and pollen provided by the rose-purple disc florets. However, in North America, the species tends to be noxious invasive plant.

[Author: Aneta Sulborska]