Taraxacum horridifrons

Bibliography
D. Uhlemann I., Trávníček B. & Zila V., Notizen zur Taraxacum-Flora Österreichs und Südtirols, III. in Neilreichia 11: 101-131. 2020
E. Trávníček, B., Marciniuk, J. & Žíla, V., New localities of Taraxacum species from Poland (with nine new species to Polish flora) in Acta Soc. Bot. Poloniae 76: 209-224. 2007
G. Lundevall, C.-F. & Øllgaard, H., The genus Taraxacum in the Nordic and Baltic countries: types of all specific, subspecific and varietal taxa, including type locations and sectional belonging in Preslia 71: 43-171. 1999
H. Lundevall, C.-F. & Øllgaard, H., The genus Taraxacum in the Nordic and Baltic countries: types of all specific, subspecific and varietal taxa, including type locations and sectional belonging in Preslia 71: 43-171. 1999 (as Taraxacum rhacodes)