2010.03.19 Austria, Lower Austria, district Mdling (Kleine Heide - heath 315 m AMSL).Flowering in march/april.Not uncommon in its rare habitat.German name: Gross-Kuhschelle
2010.03.25 Lower Austria, district Mdling, Perchtoldsdorfer Heide (315 m AMSL).Young buds.Overall rare but not uncommon in its habitats.German name: Frhlings-Adonis
2009.04.28: Austria, Lower Austria, district Schwechat/WU, 165 m AMSL, young meadow (a year old; ground disturbed previously due to roadworks): habitus.Flowering typically from june till august, may flower earlier like this one (april).Relatively rare as its preferred habitat is farmland - and herbicides effectively kill them off.German names: Scharlach-AdonisID: Fischer, Exkursionsflora 3rd; from the same habitat as this one (compare for ID).
2010-11-13 Burgenland, district Oberwart (Lafnitz wet meadows, 320 m AMSL).ID: Fischer & al., Exkursionsflora A FL SdT (3rd 2008); because of asexual reproduction split into several subspecies which to determine goes beyond my skills.
Khler's Medizinal-Pflanzen in naturgetreuen Abbildungen mit kurz erluterndem Texte :.Gera-Untermhaus :Fr. Eugen Khler,[1883-1914].biodiversitylibrary.org/page/303300
Clematis ligusticifoliawestern virgin's bower. Difficult to separate this species from C. lasiantha by photos alone. My standard for identification in this case is the blooming season, which happens to be later for C. ligusticifolia. Photographed in a private garden in Berkeley, CA