Kohler's Medizinal-Pflanzen in naturgetreuen Abbildungen mit kurz erlauterndem Texte :.Gera-Untermhaus :Fr. Eugen Kohler,[1883-1914].biodiversitylibrary.org/page/303572
2010.02.27 Austria, Vienna XXII. district, 155 m (Weiche Au - broadleaf forest, near Hausgraben - a temporarily flooded creek).Flowering from (january) february till april; this year relatively late due to snow cover till a few days previously.Very common.German name: Huflattich, Huafpflutschn
2010.04.19 Austria, Vienna XXII. district (155 m, near creek- Hausgraben).Fruiting in (march) april; leaves only appear at the end of the flowering period or when fruiting.Very common.German name: Huflattich
2011-03-14 Lower Austria, district Wien-Umgebung (Fischa wet meadow, 167 m AMSL).Usually coltsfoot is among the first ones to flower; it is somewhat late this year though, and only appearing on warm and sunny places.German name: Huflattich