SEARCH Articles Figures Tables Alkaloids hydrangea Color hydrangea Glycosides hydrangea Hydrangea [Febrifugine Hydrangea arborescens Hydrangea bushes Hydrangea macrophylla Hydrangea macrophylla Seringe var Hydrangea macrophylla Seringe var thunbergii Hydrangea paniculata Hydrangea species Hydrangea umbellata Hydrangea, antimalarial alkaloid from Phyllodulcin from Hydrangea macrophylla Purple hydrangea flowers Why do some hydrangea bushes look red and others blue