Bio-Botanica, Inc. Linden Flower In Glycerin is a product under the plant family Malvaceae, with the Latin name Tilia cordata. It contains flavonoids, volatile oil, mucilage components, and tannins. This product serves the food/beverage/dietary supplement functional categories of immune support, cardiovascular support, and respiratory support. It also has applications in the cosmetic/personal care functional category for skin care.