Botanists have developed an integrated approach to identify differences between closely related species.
Tsujimoto et al. investigated how ramets belonging to different genets were distributed in a natural population of Carrdamine leucantha in Hokkaido, Japan.
Mediterranean firs appeared millions of years earlier than was supposed, and likely through a single colonization event from Asia.
Botanists use the orchid genus Epipactis as a model for speciation, but unravelling its family tree has been difficult.