Lathraea
…inconspicuous until it flowers. The phylogeny of the genera of Rhinantheae has been explored using molecular characters. Lathraea is the sister genus to Rhinanthus, and then to Rhynchocorys. These three genera share phylogenetic affinities with members of the core Rhinantheae: Bartsia, Euphrasia, Tozzia, Hedbergia…