These tough sun-seekers include members of the Euphorbia, Salvia, Agastache, Echinacea and Achillea families to name but a few. With their tall, slender stems of colourful, open-mouth flowers ...

Here we aim at understanding how geographic separation over evolutionary time may have impacted chemical differentiation in the cosmopolitan plant genus Euphorbia. We use a combination of state-of-the ...