This winter we’re categorizing plants in our database by family. This week’s post is plants in the Ranunculaceae (Buttercup), Rhamnaceae (Buckthorn), & Rosaceae (Rose) families.

Photography by Ken Borgfeldt, Cindy Carpenter, Daudie & John Colson, David Heavner, Richard Holzman, Betty Jones, Mary Knierim, Penny Longhurst, Jim Poling, Randy Richardson, Joe Standaert, & Harriet Walls. Botanical plant names seem to change almost every day, but for now we mostly use those approved by ITIS, the Integrated Taxonomic Information System. Plants that are non-native to North America are indicated by an asterisk (*) placed after the species name. Click on any picture to zoom & enter the slide show.