Jian He, Ru-Dan Lyu, Min Yao, Lei Xie, Zong-Zong Yang
Phytokeys
Figure 1.
Holotype specimen (M. Ma & Z.Z. Yang 99348, deposited in BJFC) of the new species, Clematismae Z.Z.Yang & L.Xie, collected from Yuer gou, Toksun, Xinjiang, China.
White water crowfoot (Ranunculus aquatilis). In ponds and streams, Nova Scotia to British Columbia, south to North Carolina and Florida. Also in Europe and Asia (After Britton & Brown)
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