Bartsia

Bartsia is a genus of flowering plants in the family Orobanchaceae.
Bartsia grows in damp places, such as marshes and wet meadows, in several parts of the west of England and Wales and in southwest Scotland.
Etymology.
"Bartsia" was named after Johann Bartsch (Latinized as Johannes Bartsius, 1709-1738), a botanist of Königsberg. The plant was named for him by his associate Carl Linnaeus, and the genus has been sometimes spelt as "Bartschia".
"Starbia", an anagram of "Bartsia", is another genus of Orobanchaceae, synonym of "Alectra".
Phylogeny.
The phylogeny of the genera of Rhinantheae has been explored using molecular characters. "Bartsia" belongs to the core Rhinantheae. "Bartsia" sensu stricto (e.g. "B. alpina") is the sister genus to "Odontites", "Bellardia", "Tozzia", "Hedbergia", and "Euphrasia".
Classification.
In 1990, the genus was revised to contain 49 species; 45 of them are endemic to the Andes. The most familiar species might be the well-studied "Bartsia alpina", which has a circumboreal distribution, occurring throughout northern regions of the Northern Hemisphere. There are also two afromontane species, restricted to the mountains of northeastern Africa: "Bartsia decurva" and "Bartsia longiflora". These two plants, "B. alpina", and the many Andean species are three distinct lineages, making the genus polyphyletic.
As a solution to the problem of "Bartsia" polyphyly, two taxonomic adjustments have been proposed.
Accepted species names include the following taxa classified according to geographic distribution groups.