Cinnamomum verum
Other plants with substantial coumarin content include cassia cinnamon ("Cinnamomum cassia"), not to be confused with true cinnamon ("Cinnamomum verum"), which contains little coumarin, deertongue ("Carphephorus odoratissimus"), tilo ("Justicia pectoralis"), mullein (genus "Verbascum"), and in many cherry blossom tree varieties (of the genus "Prunus"). Related compounds are found in some but not all specimens of genus "Glycyrrhiza", from which the root and flavour licorice derives.