Lambertianin C can be found in "Rubus" species such as "Rubus lambertianus", in cloudberries ("Rubus chamaemorus ") and in red raspberries ("Rubus idaeus").
Lambertianin C can be found in "Rubus" species such as "Rubus lambertianus" Tannins and related compounds. Food Chem., 2012,60 (5), pages 1167--1174, and in red raspberries ("Rubus idaeus").