Lundevall, C.-F. & Øllgaard, H.: Seven new Taraxacum species (Asteraceae, Cichorieae) from Norden. — Willdenowia 36: 671–688. — ISSN 0511-9618; © 2006 BGBM Berlin-Dahlem. doi:10.3372/wi.36.36203 (available via http://dx.doi.org/)
Seven new species of Taraxacum from the countries of northern Europe are formally described and discussed, and their known distribution is presented. Three of them (T. expandens, T. finitimum, T. obnuptum) belong to T. sect. Borea, the rest (T. broddesonii, T. huddungense, T. pilosella, T. theodori) are members of T. sect. Ruderalia. Three of the species have been known and named for a very long time, yet not formally described by earlier taraxacologists. T. obnubilum Dahlst. ined. (non Dahlst. ex Puol.) is described with a new name.